Rising slowly on over 800,000 lbs of thrust, the Atlas V-OTV 3 mission begins. Credit: John O’Connor/nasatech
An Atlas V rocket launched from Cape Canaveral Air Force Station today, carrying the Air Force’s X-37B space plane into orbit on its third classified mission. Launch took place at 1:03 EST (18:03 UTC) for the unmanned Orbital Test Vehicle (OTV), which looks like a mini space shuttle.
The U.S. Air Force has not released any details of what may be on board the vehicle or what its mission may be. United Launch Alliance provided a webcast of the launch, but the broadcast was ended “at the request of our customer (the Air Force),” when the space plane successfully reached orbit.
See a video of the launch, below.
The X-37B is launched like a satellite and rides inside the fairing of the Atlas rocket. The X-37B can operate at in low Earth orbit for extended periods of time – the previous mission stayed in orbit for 469 days – and can re-enter Earth’s atmosphere and land on autopilot, landing just like a plane on a runway at Vandenberg Air Force Base in California.
Well into its roll program, the Atlas V-501 gracefully arcs across the blue skies. Credit: John O’Connor/nasatech
While looking much like the space shuttle, the X-37B is about 1/4 the size of NASA’s space shuttle’s and is built using composites lighter than aluminum, and it uses a new type of leading wing tiles, called Tough Rock, instead of the shuttle’s carbon-carbon tiles. It runs on solar power allowing for longer missions.
The plane itself is not so secretive – the Air Force has released images of it while it is on the ground – but its mission and payload are what are kept confidential. The mission could be Earth observation, surveillance or spying, or perhaps deploying a satellite.
A United Launch Alliance Atlas V is rolled to the pad at Space Launch Complex-41 in preparation for launch of the Air Force?s third Orbital Test Vehicle (OTV-3) mission. Credit: ULA
The launch was delayed several times so that ULA could investigate a glitch during a launch back in October.
“We had a little bit of concern with our upper stage engine, so we wanted to do some investigation and look into what was going on with that engine prior to (launch of the Orbital Test Vehicle),” said Jessica Rye, a ULA spokesperson.
In past missions, satellite watchers and amateur astronomers have kept tabs on the X-37B’s orbital whereabouts, and thanks to them, we expect to be able to provide small details about the space plane’s mission in the coming months.
Stephen Hawking visited the Large Hadron Collider’s underground tunnel at Europe’s CERN particle physics research center in 2006. Hawking and seven CERN researchers receiving multimillion-dollar prizes from the Fundamental Physics Prize Foundation. Image credit: CERN
Two $3,000,000 special physics prizes have been awarded to Stephen Hawking and to seven scientists who led the effort to discover a Higgs-like particle at CERN’s Large Hadron Collider. The Fundamental Physics Prize Foundation, backed by Russian billionaire Yuri Milner announced the awards today, saying that Hawking is honored for his discovery of Hawking radiation from black holes “and his deep contributions to quantum gravity and quantum aspects of the early universe,” and that the prize money for the European Organization for Nuclear Research, or CERN, is being shared among a scientist who administered the building of the $10 billion Large Hadron Collider and six physicists who directed two teams of 3,000 scientists each.
The $3 million Fundamental Physics Prize is awarded annually by the nonprofit Fundamental Physics Prize Foundation to recognize “transformative advances in the field.” The $3 million prize may also be given at any time outside the formal nomination process “in exceptional cases,” according to the Foundation. When the Foundation’s prize intentions were announced in July of this year, Milner said, “I hope the new prize will bring long overdue recognition to the greatest minds working in the field of fundamental physics, and if this helps encourage young people to be inspired by science, I will be deeply gratified.”
The Foundation said the seven were being honored “for their leadership role in the scientific endeavor that led to the discovery of the new Higgs-like particle by the ATLAS and CMS collaborations at CERN’s Large Hadron Collider.” They will share the $3 million prize equally.
The laureates include Lyn Evans, a Welsh scientist who serves as the LHC’s project leader; Peter Jenni amd Fabiola Gianotti of the LHC’s ATLAS collaboration; and Michel Della Negra, Tejinder Singh Virdee, Guido Tonelli and Joe Incandela of the CMS collaboration.
“It is a great honour for the LHC’s achievement to be recognised in this way,” said CERN Director General Rolf Heuer in a statement. “This prize recognizes the work of everyone who has contributed to the project over many years. The Fundamental Physics Prize underlines the value of fundamental physics to society, and I am delighted that the Foundation has chosen to hold its first award ceremony at CERN.”
“I am very much pleased with the decisions of the Selection Committee,” commented Yuri Milner. “I hope that the prizes will bring further recognition to some of the most brilliant minds in the world and the great accomplishments they have produced.”
“Choosing this year’s recipients from such a large pool of spectacular nominations was a very difficult task,” said Nima Arkani-Hamed, a member of the Selection Committee. “The selected physicists have done transformative work spanning a wide range of areas in fundamental physics. I especially look forward to future breakthroughs from the first recipients of the New Horizons in Physics Prize.”
The laureates of 2013 New Horizons in Physics Prize are:
Niklas Beisert for the development of powerful exact methods to describe a quantum gauge theory and its associated string theory;
Davide Gaiotto for far-reaching new insights about duality, gauge theory, and geometry, and especially for his work linking theories in different dimensions in most unexpected ways;
Zohar Komargodski for his work on the dynamics of four-dimensional field theories. In particular, his proof of the “a-theorem” has solved a long-standing problem, leading to deep new insights.
Artist concept of Ebb and Flow, the two GRAIL spacecraft in orbit of the Moon. Credit: NASA
The Herschel space telescope is slated to be decommissioned next March as the observatory’s supply of cryogenic helium will be depleted. One idea for “disposing” of the spacecraft was to have it impact the Moon, a la the LCROSS mission that slammed into the Moon in 2009, and it would kick up volatiles at one of the lunar poles for observation by another spacecraft, such as the Lunar Reconnaissance Orbiter. However, that idea has been nixed in favor of parking Herschel in a heliocentric orbit. But don’t be disappointed if you were hoping for a little lunar fireworks. There will soon be a double-barreled event as the twin GRAIL spacecraft will impact the moon’s surface on December 17, 2012.
NASA will be providing more information about the GRAIL spacecrafts’ impacts at a briefing on Thursday, but the Gravity Recovery and Interior Laboratory (GRAIL) team said last week that they were still formulating ideas for the impact scenario, and looking at the possibility of aiming the crashes so they are within the field-of-view of instruments on LRO. The two spacecraft are running out of fuel – Principal Investigator Maria Zuber said they have to do three maneuvers every day to keep the spacecraft from slamming into the Moon on their own – and earlier this year the duo were lowered from their prime mission orbit of 55 kilometers above the Moon to 23 km, and this week were lowered to 11 km to enable even higher resolution data.
The two spacecraft have been providing unprecedented detail about the Moon’s internal structure as they send radio signals to each other and monitor any changes in distance between the two as they circle the Moon. Changes as small as 50 nanometers per second have been measured, and last week the team detailed how they were able to create the most detailed gravity map of the Moon, as well as make determinations that the Moon’s inner crust is nearly pulverized.
We’ll provide more information about the GRAIL impacts when it becomes available, but preliminary details are that the impacts will take place on Dec. 17 at 19:28 UTC (2:28 p.m. EST).
The impact by LCROSS (Lunar Crater Observation and Sensing Satellite) confirmed the presence of water ice and an array of volatiles in a permanently shadowed crater at the Moon’s South Pole, and it is expected GRAIL would be targeted for similar observations.
Artist’s concept of Herschel at the L2 libration point one million miles from Earth. Credit: ESA
The Herschel team had said earlier this year that because the cryogenic superfluid helium coolant is running out — and the spacecraft needs to be at temperatures as low as 0.3 Kelvin, or minus 459 degrees Fahrenheit to make its observations — one idea of getting rid of the spacecraft would be to impact it on the Moon. This week, they posted on the Herschel website that ‘the lunar impact option is feasible, but carries an additional cost on top of that of the heliocentric orbit option. The ESA Executive has decided that the Herschel spacecraft will be “parked” indefinitely in heliocentric orbit.”
The Herschel operational large halo orbit around L2 is unstable, and so the orbit needs regular “maintenance,” and consequently, after end-of-helium (expected in March 2013), the spacecraft will need to be “parked” somewhere else with no need of orbit maintenance.
Herschel team member Chris North told Universe Today that the mission operators needed to get some engineering tests done to determine if the Moon impact was feasible. “Basically they hand it over to engineers who do things that are considered too risky during the scientific mission itself – e.g. test the attitude control to its limits to see what it can withstand!” North said via email. He added that most people he had spoken with were all for the impact, — having it “go out in a blaze of glory.”
But, surprisingly, the costs for impact are greater than leaving it in a parking orbit for a few hundred years. It’s orbit may have to be maintained again in the future, as some estimates put it at potentially impacting Earth at some point in several hundred years.
And for anyone worried that a lunar impact by the GRAIL spacecraft will “hurt” the Moon, one look at the Moon shows that it has been hit in the past and continues to get impacted by asteroids and meteoroids, with no adverse affect to its orbit.
As LCROSS principal investigator Tony Colaprete said about the LCROSS impact, “What we’re doing with the Moon is something that occurs naturally four times a month on the Moon, whether we’re there or not. The difference with LCROSS is that it is specifically targeted at a certain spot, Cabeus crater,” and that the laws of physics mean there will be a miniscule perturbation.
Even though the Centaur rocket stage that hit the Moon was expect to kick up about 350 tons of lunar regolith, “The impact has about 1 million times less influence on the Moon than a passenger’s eyelash falling to the floor of a 747 jet during flight,” Colaprete said.
The two GRAIL spacecraft are about the size of washing machines, much smaller than the Centaur rocket, so will have less of an impact.
Image of Asteroid 2012 XE54 taken with the the H06 ITelescope network near Mayhill, New Mexico on December 11, 2012, through a 0.25-m f/3.4 reflector + CCD. Credit: Ernesto Guido & Nick Howes, Remanzacco Observatory.
A newly discovered small asteroid named 2012 XE54 passed harmlessly by Earth early today and as predicted it was eclipsed by Earth’s shadow, causing its light to “wink out” for a short time, about 40 minutes.
Above is an image of the asteroid from Ernesto Guido and Nick Howes using a 0.25-m f/3.4 reflector + CCD with the ITelescope facility near Mayhill, New Mexico. It is a single 60-second exposure, “taken with the asteroid at magnitude ~13.2 and moving at ~630 “/min. The asteroid is trailed in the image due to its fast speed. At the moment of the close approach 2012 XE54 will move at ~ 720″/min… North is up, East is to the left,” wrote Guido and Howes on the Remanzacco Observatory website.
Below is an animation showing the movement of 2012 XE54, using three consecutive 60-second exposures. This asteroid was zipping right along at a fast pace, at a distance from Earth of about 226,000 km (141,000 miles) or about .6 lunar distances.
Pasquale Tricarico of the Planetary Science Institute had predicted that the asteroid would pass through the Earth’s shadow, creating an asteroid eclipse, a rather rare event that is similar to an eclipse of the full Moon by Earth’s shadow. At 01:22 UTC on December 11 the eclipse began, and it left Earth’s shadow at 02:00 UTC. Those watching the asteroid noted that the asteroid “disappeared” from its track, and then reappeared after leaving Earth’s shadow.
“In two images taken at 01:30:16 and 01:31:18, 60sec exposure, 2012 XE54 appeared as a very faint and long track, then… nothing. In the following images there is no visible track. Wonderful!” wrote Elia Cozzi from the New Millennium Observatory, posting in the mpml asteroid research group message board.
While we don’t have images to share of that event, as Guido and Howes mentioned, Peter Birtwhistle produced a lightcurve (see graph below) of the eclipse:
Tricarico wrote that the first known case of an asteroid being eclipsed by Earth’s shadow was “Asteroid 2008 TC3 which was totally eclipsed just one hour before entering Earth’s atmosphere over Sudan in 2008, and asteroid 2012 KT42 experiencing both an eclipse and a transit during the same Earth flyby in 2012.”
Guido and Howes also mentioned that their work last night was “in memory of our dear friend & colleague Giovanni Sostero.”
Four computer generated views of Asteroid Toutatis based on Goldstone radar imagery. Via NASA
A newly discovered small asteroid named 2012 XE54 and a long-studied giant space rock named Toutatis will buzz past Earth during the next 24 hours, and astronomers are already watching the skies. While there is no danger of either hitting Earth, scientists have much to learn from both. Asteroid 2012 XE54 was discovered over the weekend on December 9 and it will safely pass between the Earth and the Moon’s orbit at a distance of about 226,000 km (141,000 miles) or about .6 lunar distances. Closest approach will be just a few hours after this article was posted, at 10:10 UTC on Dec. 11. But already an interesting event has already happened with this 28-meter-wide asteroid: it was eclipsed by Earth’s shadow. This is quite a rare event, and was visible to astronomers.
This animation shows the Sun and the Earth as observed from the asteroid 2012 XE54. If this eclipse occurs, the asteroid will be in Earth’s shadow. Animation via Pasquale Tricarico
Pasquale Tricarico of the Planetary Science Institute had predicted that the asteroid would pass through the Earth’s shadow, creating an asteroid eclipse, an event that is similar to an eclipse of the full Moon by Earth’s shadow. At 01:22 UTC on December 11 the eclipse began, and it left Earth’s shadow at 02:00 UTC. Those watching the asteroid noted that the asteroid “disappeared” from its track, and then reappeared after leaving Earth’s shadow.
“In two images taken at 01:30:16 and 01:31:18, 60sec exposure, 2012 XE54 appeared as a very faint and long track, then… nothing. In the following images there is no visible track. Wonderful!” wrote Elia Cozzi from the New Millennium Observatory, posting in the mpml asteroid research group message board.
We hope to have images of the event when they become available.
4179 Toutatis, with a shape that has been described as a “malformed potato” will pass at a large distance of 6.9 million kilometers (4.3 million miles) away from Earth, or more than 18 times the distance from the Earth to the Moon.
It is a biggie, though at 4.46 kilometers (2.7 miles) long and 2.4 kilometers (1.5 miles) wide, and is considered a potentially hazardous asteroid because it makes repeated passes by the Earth, about every four years. In comparison, the asteroid that is thought to have destroyed the dinosaurs was approximately 10 km (6 miles) wide.
It’s closest pass will be covered by the Slooh Space Camera on Tuesday, December 11th, with several live shows on Slooh.com, free to the public, starting at 20:00 UTC (12 PM PST / 3 PM EST, find international times here — accompanied by real-time discussions with Slooh President, Patrick Paolucci, and Astronomy Magazine columnist, Bob Berman.
At its maximum brightness, Toutatis might be barely visible through binoculars, but should be very bright through Slooh telescopes at its being tracked.
“We will be tracking Asteroid Toutatis live from two observatory locations – Canary Islands, off the coast of Africa and Arizona,” said Patrick Paolucci, President at Slooh.
Astronomers are interested in this returning asteroid to try and figure out what the asteroid is made of. Also by refining a model of the asteroid’s rotation, they’ll get a better idea of its composition, thereby gaining a greater understanding of the early solar system.
Lance Benner from JPL said that this asteroid is tumbling slowly, but with a complex motion.
“It’s a very peculiar rotation state,” Benner said. “It rotates very slowly and it tumbles in a manner somewhat similar to the way a football tumbles if you screw up a long pass.”
To space Tweeps, Twitter is so much more than just a news service. It’s a community, a spot where everyone can showcase their interests and form professional bonds with each other.
The most prominent space-themed Twitter accounts of 2012 somehow transcended their original purpose, too. A NASA Mars Curiosity account ended up hobnobbing with comedian Steve Martin, and a space-station-passing service suddenly found itself in bit of a Twitter controversy.
Here are 10 of some of the most memorable Twitter accounts from this year. Yes, there’s a lot of Mars reflected here, but the entities quoted below explore all over the Universe.
@astro_andre
Dutch astronaut André Kuipers spent the first half of 2012 orbiting Earth. From his perch aboard the International Space Station, he participated in the historic SpaceX docking in May and finished 50 experiments. But rather than dwell on these achievements, he spent his tweeting time in space showing his gorgeous pictures of Earth. Maybe that old Apollo phrase about going to space and discovering Earth still has resonance today.
@BadAstronomer
Phil Plait is a good scientist-cum-journalist to follow in general, because his tweets constantly show his love of the universe. (“Embiggen!” he would perhaps shout at this point.) What made him stand out in 2012, though, was his willingness to use his immense Internet fame to showcase the work of others, such as his frequent Tweeting and posting of great space images and timelapse videos, or helping to ‘kickstart’ new projects and help them get off the ground, such as the Uwingu astronomy startup. He shows that Twitter most definitely has altruistic use.
@chrislintott
Chris Lintott demonstrated how to handle a situation when a close, beloved colleague passes away. The co-presenter of The Sky At Night was among the first official voices giving word of Sir Patrick Moore‘s death, and he retweeted messages of remembrance from colleagues and ordinary people. Nicely done, during what was a difficult time.
@claratma
Hard to believe Clara Ma is a mere 15 years old when reading tweets like this. The Kansas-based teenager named the Mars Curiosity rover. This year, she has been graciously fielding interview requests from journalists, and messages of support from NASA employees, ever since the rover made it to Mars in August.
@Cmdr_Hadfield
OK, I’ll admit my bias here: I’m Canadian. I’ve been watching Canadian astronaut Chris Hadfield since he was selected 20 years ago. But in the Twittersphere, he’s made an impact. My fellow journalists publicly speak about his work, with respect. His tweets showing his astronaut training are favourited and retweeted by people all over the world. And as the first Canadian to command the International Space Station next year, Hadfield will be a force to watch in 2013.
@MarsCuriosity
Three NASA employees are behind the “hive mind” of @MarsCuriosity. The official feed for the Curiosity mission skyrocketed to fame in 2012, receiving tweets from celebrities ranging from Britney Spears to the aforementioned Steve Martin. In this case, happily, “official” doesn’t always mean “staid.” The Twitter account has been a bevy of jokes and cheerful updates in between the standard scientific results.
@NASAVoyager
At 35 years and counting, the two NASA Voyager spacecraft have ventured into the newer field of social media. The accounts received more attention as Voyager 1 reached the edge of our solar system in 2012. It’s hard to summarize solar and interstellar physics in just 140 characters, but this official NASA account does it quite well.
@SarcasticRover
Nothing says pop culture as seeing your catchphrase — “Let’s Do a Science!” — repeated ad nauseum by planetary scientists on Twitter. The brainchild of Jason Filiatrault, this account is a parody of the official Mars Curiosity Twitter and depicts a rover angrily making its way around Mars after being ordered there by unfeeling humans. Besides wry observations of Martian life, the rover broadcasts its point of view on recent discoveries in a unique way.
@SpaceX
Not often that a corporate account uses four exclamation marks in a row, but the space geeks would argue this is justified. SpaceX made headlines and history in 2012 when the Dragon spacecraft berthed with the International Space Station — a first for a private spacecraft. SpaceX’s Twitter not only broadcasts mission news, but also seeks out mentions of the company and adds commentary.
@twisst
Just before the International Space Station passes by overhead, @twisst gives you a heads-up that you’ll be able to see it. This popular account’s service was briefly shut down in 2012 due to Twitter’s concerns about the duplicate accounts required to make the service work. But a few tweaks later, @twisst returned — to the delight of its thousands of followers.
Canadian astronaut Chris Hadfield prior to his world-famous Expedition 34/35 mission in 2013. Credit: NASA
Astronaut Chris Hadfield getting dressed for work – “with a little help from my friends,” he said.
On December 19, 2012, a trio of Expedition 34 crewmembers are scheduled to launch from the Baikonur Cosmodrome in Kazakhstan and head towards their home in space for six months, the International Space Station. Among the crew is Canadian astronaut Chris Hadfield, who for over two years has been training for this flight. During that time, Hadfield has been sharing his training experiences through Twitter and Facebook, letting the public get an inside look at what it takes to prepare for a long-duration spaceflight. Some of this training – much of it, in fact – is not pretty or glamorous or easy. But it will get you to one of the most unique destinations that humans have ever gone.
With Hadfield’s help, we’re going to share some of his training experiences and insights from the past two years as we wait for his launch in ten days. Hadfield is now in quarantine in Kazakhstan, making final preparations for his flight with crewmates Tom Marshburn and Roman Romanenko.
“Enemas and Barf Bags – the less glamorous side of spaceflight 🙂 From today’s medical briefings in quarantine,” Tweeted Hadfield on December 9, 2012.
“When you first become an astronaut,” Hadfield said earlier this year from his office at NASA’s Johnson Space Center, “your training is like a big pyramid. Initially, it is like the bottom of the pyramid and is very broad-brush, where you cover a lot of topics but don’t get into super-detail. Then you start getting more and more detail on specific things like systems, specialties, and robotics, and then start getting deeper and deeper into each of them.”
“But then, when you get assigned to a flight, you review all those things and then start focusing on things that a pertinent to your increment, and when you get closer to the flight you start putting everything together and do simulations where you have to know the things that you really need to know,” Hadfield explained, adding that this is similar to studying at any university, and then going out into the real world….except that the stakes are much higher in space, and your life can depend on your training.
At the Baikonur Cosmodrome in Kazakhstan, Expedition 34 Flight Engineer Chris Hadfield of the Canadian Space Agency conducts a “fit check” dress rehearsal inside the Soyuz TMA-07M spacecraft Dec. 7, 2012. Credit: NASA
“The training starts with a lot of theory and classroom and powerpoint and exams through simulations and practical things,” Hadfield said. For example, the morning we talked with him, he had spent an hour learning how to repair the water processing and urine purification systems on the ISS, then went on to inventory management of food, learning how to keep track and store the food. The next day, he was have a “day in the life” simulation where he and Marshburn would spend a day as if they were on the ISS, practicing everything from their daily planning conference and getting their the daily uplink messages, to sampling the indoor atmosphere, fixing broken equipment, and doing inventory.
“We’re going from theoretical to practical,” Hadfield said.
“I’m studying for my final 7 exams to qualify for spaceflight,” said Hadfield on November 5, 2012.”
On top of the general training is the specific training for the science and various payloads that will be part of their expedition. That training is often very specific.
“With some we have to get quite hands on, like doing a cardio ultrasound where we the technician, and others where we just have to monitor the power systems,” Hadfield said. “It all blends together and as you get closer to the top of the pyramid, it gets very focused on what you need to know.”
“The Final Sim – the biggie, 8 hours in the Soyuz where they throw everything at us. We’re ready!” said Hadfield on November 27, 2012.
Hadfield is a veteran of two previous space flights on the space shuttle but this will be his first long-duration flight on the ISS.
“Both times I thought, wow, I wish I could stay,” Hadfield said. “To leave earth for awhile, change your zip code for awhile and really leave Earth; I was jealous of that experience. Now after a lot of lucky coincidences and a lot of hard work I get to be one of those who stays for an extended period off the planet. I’m really looking forward to it.”
“4 Flags over Kazakhstan – I was proud to raise the Maple Leaf, now flying above our Quarantine here in Baikonur,” Tweeted Hadfield on December 10, 2012.
And there’s a bit of Canadian pride that goes along with this. Hadfield was the first Canadian to operate the robotic Canadarm in space in 1995 and on his second flight in 2001 Hadfield made the first Canadian spacewalk as he attached Canadarm2 to the International Space Station.
And now, in another first for a Canadian, Hadfield will take command of the ISS for the second half of his mission, lead a crew of two Americans and three Russians during the final three months.
“Russian crew poster. Happy to be cast as Tommy Lee Jones,” said Hadfield on November 29, 2012.
“Astronaut Glamour Shot – white underwear, black socks, Snoopy helmet & leather slippers. The ensemble screams ‘cool'” Tweeted Hadfield on October 31, 2012.
Video: Chris Hadfield Suits-up and Signs-off on his final Soyuz Qualification exam
Video: School is never out for an astronaut – Chris Hadfield in Star City, Russia. Translation: “We are walking to work—to school—at the Gagarin Cosmonaut Training Centre in Star City, Russia.”
When Edwin Hubble observed that distant galaxies are speeding away from us in all directions, he discovered the reality that we live in an expanding Universe. Hubble worked to calculate exactly how fast this expansion is happening, creating the Hubble constant – which astronomers continue to refine and reference in their research.
And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should really join the carnival. Just email an entry to [email protected], and the next host will link to it. It will help get awareness out there about your writing, help you meet others in the space community – and community is what blogging is all about. And if you really want to help out, sign up to be a host. Send an email to the above address.
Giovanni Sostero, 1964-2012. Image courtesy of the Remanzacco Observatory
With sadness, we learned of the death of amateur astronomer Giovanni Sostero last Friday. Universe Today readers will remember Giovanni as a member of the team of astronomers from the Remanzacco Observatory in Italy, whose outstanding work we frequently feature, especially for their observations of comets, asteroids and supernovae. Tragically, Giovanni was just 48 years old and passed away due to complications following a heart attack.
Giovanni was credited with the discovery of several supernovae, and Asteroid 9878 Sostero (1994 FQ) was named after him to honor his astronomical observations. His work was published in several professional astronomical journals and he was a leading and active member of the Associazione Friulana di Astronomia e Meteorologia, based in Friuli, Italy, and was an honorary member of the Astronomical Observatory of Visnjan in Croatia.
Not only did he work hard behind the eyepiece, but he was very active in public outreach about astronomy.
Giovanni’s closest colleagues were his co-astronomers at the Remanzacco Observatory, Ernesto Guido and Nick Howes. Both have graciously penned their remembrances of Giovanni for Universe Today, so please read on to get a true sense of not only how much Giovanni contributed to the world of astronomy, but also his unique personality. He will be greatly missed and we at Universe Today send our condolences to his family and friends.
From Ernesto Guido
Italy:
Over the past eight years, I had the privilege to undertake astronomy projects working closely with Giovanni Sostero. In fact our collaboration and friendship started at the beginning of 2005. At that time Giovanni was already an accomplished amateur astronomer known both nationally and internationally for its expertise, his scientific rigor and for his overwhelming passion for the comets. For my part, I was then moving the first steps as a young amateur astronomer. Eager to do my part, I dearly wanted to be a part of any team with the best names in contemporary astronomy and for these past 8 years was lucky enough to meet Giovanni along my own personal road.
Born in Udine in 1964, Giovanni was for many years President of the Italian astronomy association AFAM of Remanzacco. He was coordinator of the comet section of UAI (Unione Astrofili Italiani) and one of the leaders of CARA Team (Comet AfRho Research Group). He began his collaboration with the UAI Comet section in 1983 (the year of perihelion passage of 22P/Kopff), and subsequently participated to the International Halley Watch watching the 21P/Giacobini-Zinner and 1P/Halley.
His passing is a great loss for all those who loved him and for the world of astronomy. It is impossible to list here the many discoveries, articles and all contributions he made to the world of professional and amateur astronomy, not only to the field of comets.
One need only recall the 11 supernovae discovered by him in the years 2005-2009, a nova in the galaxy M31 in 2000 (the first discovery by amateur means) together with dear friends of Remanzacco Observatory, the discovery of dozens of asteroids and the observation and follow-up of hundreds of comets and Near Earth Asteroids (NEOs). In the last two years, we had embarked on a new partnership and friendship with the English amateur astronomer Nick Howes. We both agreed that we could get wonderful results together with Nick, but a cruel fate took Giovanni away too soon.
It will be impossible to fill the void he leaves, but the best way to honour him will be to continue on the road we had taken together to try shed some more light via our research on the objects he loved so much, the comets.
Giovanni was a great person, a great astronomer and the best of friends. I will miss him immensely!
I first encountered the remarkable Giovanni Sostero and his long time friend and collaborator Ernesto Guido in 2010, after the successful imaging of Comet 103P in support of the NASA AOP program. I was using the 2m Faulkes Telescopes a lot for cometary imaging, and after we got chatting, onlline, we decided to collaborate as a team working on both the Faulkes scopes and also their own observatory in Italy for ongoing cometary research projects. His knowledge of the skies was truly staggering, as was his knowledge of comets in general. I learnt so much from working with him, a kind, generous and informative individual with a phenomenal sense of humour.
You only have to look at the over 1880 NASA ADS citations he has for his work, combined with several supernova discoveries and an asteroid named after him, to realise that not only the amateur community, of which we are all proud members, but the professional astronomical community, respected and loved this man.
The reaction on the social media sites and comet mailing lists has been universal, one of shock and deep sadness, that we have lost such a wonderful mind, and such a great person. I valued his friendship greatly, his mentoring, his help and passion for astronomy were invaluable, and words can’t express the deep sadness I think we all feel. The team at Faulkes…well we’re all in deep shock… as we had great plans for this year, with the ESA comet 67P mission project, our plans to track comet ISON and comet Panstarrs L4, but Ernesto and I will continue, and aim to honour his name with many great new discoveries.
You can read more words of condolences for Giovanni here.
