Space and astronomy news
We found our first exoplanets orbiting a pulsar in 1992. Since then, we’ve discovered many thousands more. Those were the first steps in identifying other worlds that could harbour life.
Now planetary scientists want to take the next step: studying exoplanet atmospheres.
The ESA’s ARIEL mission will be a powerful tool.
Continue reading “ESA’s ARIEL Mission Will Study the Atmospheres of More Than 1,000 Exoplanets”
Jerry Woodfill, an engineer who worked diligently behind the scenes during NASA’s Apollo program, has passed away at age 79. Jerry was still employed by the Johnson Space Center (JSC) at the time of his death, working there for over 57 years. Most notably, Jerry worked as the lead engineer behind the Caution and Warning System on the Apollo spacecraft, which alerted astronauts to issues such as Apollo 11’s computer problems during the first Moon landing, and the explosion of Apollo 13’s oxygen tanks.
While continuing his work as an engineer at JSC, Jerry’s infectious enthusiasm for spaceflight led him to also be part of NASA’s public and educational outreach, where he spearheaded programs for children, teachers and adults about science and space flight. He routinely gave over 40 lectures a year, both in person and online to listeners around the world. His unique sense of humor and sometimes unabashed showmanship could hold even the shortest of young attention spans. Jerry usually had his audiences either in stitches or fully captivated by his stories.
Continue reading “Remembering NASA Engineer Jerry Woodfill, the Inspiration Behind “13 Things That Saved Apollo 13””
Among the thousands of known exoplanets, there are some that are very odd. Take, for example, the exoplanet known as WASP-103b. It’s a large planet with a mass about 1.5 times that of Jupiter, but 103b is so close to its star it makes a complete orbit every 22 hours. At this proximity, many astronomers wonder if the world is on the edge of being ripped apart by tidal forces. But a new study shows us that something much more interesting is going on.
Continue reading “Extreme Tidal Forces Have Deformed an Exoplanet”
In February 2016, Gravitational Waves (GWs) were detected for the first time in history. This discovery confirmed a prediction made by Albert Einstein over a century ago and triggered a revolution in astronomy. Since then, dozens of GW events have been detected from various sources, ranging from black hole mergers, neutron star mergers, or a combination thereof. As the instruments used for GW astronomy become more sophisticated, the ability to detect more events (and learn more from them) will only increase.
For instance, an international team of astronomers recently detected a series of low-frequency gravitational waves using the International Pulsar Timing Array (IPTA). These waves, they determined, could be the early signs of a background gravitational wave signal (BGWS) caused by pairs of supermassive black holes. The existence of this background is something that astrophysicists have theorized since GWs were first detected, making this a potentially ground-breaking discovery!
Continue reading “Astronomers Might Have Detected the Background Gravitational Waves of the Universe”
Axions are a popular candidate in the search for dark matter. There have been previous searches for these hypothetical particles, all of which have come up with nothing. But recently the results of a new search for dark matter axions have been published…and has also found nothing. Still, the study is interesting because of the nature and scale of the search.
Continue reading “A Worldwide Search for Dark Matter Fails to Turn up a Signal for This Mysterious Particle”
Last month, an Ariane 5 rocket carried the James Webb Space Telescope (JWST) safely to space, the latest of 112 total launches for the European Space Agency’s (ESA) primary workhorse rocket. With a 95.5% success rate, the Ariane 5 has been a reliable ride to space for decades, but its story is about to come to an end. ESA is no longer building new Ariane 5 vehicles, instead developing its next-generation rocket, the Ariane 6, which is intended to provide cheaper access to space. This week, the first completed core stage of a new Ariane 6 rocket arrived at the spaceport outside Korou in French Guiana for testing.
Continue reading “With Webb Safely Launched, Focus Shifts to the Ariane 6”
Carbon is critical to life, as far as we know. So anytime we detect a strong carbon signature somewhere like Mars, it could indicate biological activity.
Does a strong carbon signal in Martian rocks indicate biological processes of some type?
Continue reading “Curiosity Sees a Strong Carbon Signature in a Bed of Rocks”
The first flight of 2022 for the Ingenuity Helicopter has been delayed due to a regional dust storm on Mars. Mission planners had originally targeted January 5 for the tiny helicopter’s 19th flight, but they needed to push back the flight when orbital images and weather instruments on the Perseverance rover indicated a worsening weather situation.
Weather conditions have now improved, however, and the Ingenuity team anticipates the next flight will take place on Sunday, January 23.
Continue reading “Bad Weather Postpones Ingenuity’s 19th Flight on Mars”
In October 2017, the interstellar object ‘Oumuamua passed through our Solar System, leaving a lot of questions in its wake. Not only was it the first object of its kind ever to be observed, but the limited data astronomers obtained as it shot out of our Solar System left them all scratching their heads. Even today, almost five years after this interstellar visitor made its flyby, scientists are still uncertain about its true nature and origins. In the end, the only way to get some real answers from ‘Oumuamua is to catch up with it.
Interestingly enough, there are many proposals on the table for missions that could do just that. Consider Project Lyra, a proposal by the Institute for Interstellar Studies (i4is) that would rely on advanced propulsions technology to rendezvous with interstellar objects (ISOs) and study them. According to their latest study, if their mission concept launched in 2028 and performed a complex Jupiter Oberth Manoeuvre (JOM), it would be able to catch up to ‘Oumuamua in 26 years.
Continue reading “If Launched by 2028, a Spacecraft Could Catch up With Oumuamua in 26 Years”
Scientists’ detailed study of the Moon dates back to the Apollo missions when astronauts brought rock samples from the lunar surface back to Earth for analysis. Apollo 11 gathered samples from the lunar highland regions, the pale areas on the Moon’s surface easily seen from Earth. The highlands are made of a relatively light rock called anorthosite, which formed early in the history of the Moon, between 4.3 and 4.5 billion years ago.
There’s some mystery involved in the anorthosite formation on the Moon. The age of the anorthosite highlands doesn’t match how long it took for the Moon’s magma ocean to cool. But scientists behind a new study think they’ve solved that mystery.
Continue reading “The Moon’s Crust was Formed From a Frozen Slushy Magma”