Space and astronomy news
The Antarctic Peninsula is the northernmost part of Antarctica, and has the mildest climate on the continent. In January, the warmest part of the year, the temperature averages 1 to 2 °C (34 to 36 °F). And it’s getting warmer.
Those warm temperatures allow snow algae to grow, and now scientists have used remote sensing to map those algae blooms.
Continue reading “The Coast of Antarctica is Starting to Turn Green”
In 2017, astronomers used ALMA (Atacama Large Millimeter/sub-millimeter Array) to look at the star AB Aurigae. It’s a type of young star called a Herbig Ae star, and it’s less then 10 million years old. At that time, they found a dusty protoplanetary disk there, with tell-tale gaps indicating spiral arms.
Now they’ve taken another look, and found a very young planet forming there.
Continue reading “This is an Actual Image of a Planet-Forming Disc in a Distant Star System”
In the past year, the newly-formed US Space Force has taken a number of steps to set itself apart as an independent service branch. This included adopting a logo, uniforms, a flag, specialized training for career tracks, a recruitment video, and conducting its first missions (like the recent launch of the X-37B). And now, they have announced that they have adopted a revised approach for locating a headquarters.
Previously, the US Space Force was to be headquartered at Peterson Air Force Base in Colorado Springs. The revised approach, instituted by the Department of the Air Force and the Office of Secretary of Defense, takes into account the emerging organizational structure of the USSF and the impact it will have. This move expands the number of possible locations for a permanent USSF base and an analysis process for choosing the final spot.
Continue reading “U.S. Space Force is Looking For a Place to Put its Headquarters”
There are eight classical planets in our solar system, from speedy Mercury to distant Neptune. There are also numerous dwarf planets, such as Pluto and Ceres. While we continue to find more dwarf planets, there are some hints that another large planet could lurk far beyond Neptune. This Planet Nine is thought to be a “super-Earth” about five times the mass of our planet, which would make it about twice as large as Earth. But despite several searches for the planet, it has not yet been found.
Continue reading “Maybe a Fleet of Tiny Spacecraft Could Help Detect a Primordial Black Hole Planet 9”
In the mid-2020s, NASA’s next-generation Wide Field Infrared Survey Telescope (WFIRST) will take to space. With unprecedented resolution and advanced instruments, it will build on the foundation established by the venerable Hubble Space Telescope – which celebrated its 30th anniversary this year! In anticipation of all it will accomplish, NASA decided that the WFIRST needs a proper name, one that honors its connection to Hubble.
This week, NASA announced that henceforth, the WFIRST mission will be known as the Nancy Grace Roman Space Telescope (or Roman Space Telescope for short) in honor of Dr. Nancy Grace Roman (who passed away in 2018). In addition to being NASA’s first Chief Astronomer, she was also a tireless educator and advocate for women in STEMs whose work paved the way for space telescopes – leading to her nickname “the mother of Hubble.”
Continue reading “WFIRST Will be Named After Nancy Grace Roman, NASA’s First Chief Astronomer”
SpaceX is really coming along with its development of the Starship and Super Heavy launch system. After repeated delays caused by structural failures (aka. explosions), the company got back on track late in April when their fourth prototype (SN4) passed the crucial cryogenic load test. This was followed by a successful static fire test on May 4th, followed by a second static fire test the next day.
And, after being scrubbed three times since last Friday (May 15th), SpaceX conducted the third static fire test with the SN4 on Tuesday, May 19th. Unfortunately, an unexpected fire near the base of the rocket caused the prototype to get a bit scorched and caused some internal damage. However, the prototype survived and is back in working order, which means SpaceX is moving ahead with more tests in preparation for a full-scale launch.
Continue reading “The SpaceX Starship Could Fly This Summer!”
The date is finally set for OSIRIS-REx’s sampling maneuver. The spacecraft has been at asteroid Bennu since the end of December 2018. During that time, it’s found a few surprises, and mapped the surface in great detail.
Now, we can circle October 20th on our calendars, as the date OSIRIS-Rex will collect its sample.
Continue reading “OSIRIS-REx Will Collect a Sample from Bennu on October 20th”
We’ve found thousands and thousands of exoplanets now. And spacecraft like TESS will likely find thousands and thousands more of them. But most exoplanets are gassy giants, molten hell-holes, or frozen wastes. How can we find those needles-in-the-haystack habitable worlds that may be out there? How can we narrow our search?
Well, first of all, we need to find water. Oceans, preferably, since that’s where life began on Earth. And according to a new study, those oceans need to circulate in particular ways to support life.
Continue reading “Ocean Circulation Might Be the Key to Finding Habitable Exoplanets”
The North Pole ain’t what it used to be. Well, the geographic North Pole stays fixed over time (mostly because we define it to stay fixed over time) but the magnetic north pole constantly moves. And over the past decade it’s been moving out of Canada towards Siberia four times faster than it has in the past couple centuries. Armed with data from the ESA’s Swarm satellite, scientists might finally know why: the shifting of our magnetic field north pole is caused by a titanic struggle between two competing massive magnetic plumes.
Continue reading “Magnetic north is migrating towards Siberia. Here’s why”
On February 19th, 2019, the US Space Force (USSF) was officially created with the signing of Space Policy Directive–4. This effectively broke off from the US Air Force Space Command (AFSC) and made into the sixth and youngest independent branch of the armed forces. Since then, the USSF has established a headquarters, taken on staff from the US Air Force, and even produced a recruitment video!
In their latest announcement, the US Space Force stated that it will begin training soon to develop their staff’s “space warfighting skills.” This will include training personnel to specialize in orbital warfare, electronic warfare, military strategy, and others. The immediate aim is to produce personnel who can control US space infrastructure and protect it from physical, electronic, or digital attacks.
Continue reading “Space Force is Starting to Train its Soldiers to Fight… in Space?”