Space and astronomy news
Symmetry in nature is pleasing to look at, and even more so when that symmetry is novel. There’s plenty of it to see on Earth, as biological processes have a penchant for patterns. But finding it off-world is trickier, and sometimes more striking. Which is why a picture from HiRISE of some Martian dunes is so spectacular.
Continue reading “Dunes Trapped in a Crater on Mars Form This Interesting Pattern”
Planning ahead is something astronomy and space exploration excels at. Decadal surveys and years of engineering effort for missions give the field a much longer time horizon than many others. In the near future, scientists know there will be plenty of opportunities to search for biosignatures everywhere from nearby ocean worlds (i.e. Titan) to far away potentially habitable exoplanets. But it’s not clear what those biosignatures would look like. After all, currently there is only Earth’s biosphere to study, and it would be unfortunate to miss hints of another just because it didn’t look like those found on Earth. Now a team led by researchers at the Santa Fe Institute (SFI) have come up with a framework that could help scientists look for biosignatures that might be completely different from those found on Earth.
Continue reading “Researchers Develop a new Framework for Searching for Biosignatures”
With all the new discoveries that seem to occur almost monthly, it’s sometimes hard to remember that finding exoplanets is still a relatively new and difficult science. As part of those continual discoveries, back in 2018 a team announced they had found a planet candidate around Barnard’s Star, one of the closest to our own. Now, a different team has re-analyzed the data, collected some new data, and found that the planet detection was likely a false positive.
Continue reading “New Observations Fail to Confirm a Planet at Barnard’s Star”
In July 1999, the Space Generation Advisory Council (SGAC) was created with the purpose of representing the “Space Generation” to the UN Office of Outer Space Affairs (UNOOSA). For this non-governmental organization and professional network, this would consist of bringing the “views of students and young space professionals to the United Nations (UN), space industry and other organizations”.
Given the importance of the Moon for all of our future space exploration goals, SGAC created an interdisciplinary group in June of 2020 that is focused on lunar policy. Known as the Effective and Adaptive Governance for a Lunar Ecosystem (E.A.G.L.E.), this group of 14 young space professionals is dedicated to ensuring that the younger generation has a voice when it comes to the development of regulations for lunar policy.
On May 12th, 2021, the SGAC released the report prepared by the EAGLE group, which outlines their ideas and proposals for how we can ensure that the regulations governing lunar activities are inclusive, effective, and adaptative. It’s known as the Lunar Governance Report, a document that will be presented during the 2021 meetings of the UN Committee on the Peaceful Uses of Outer Space (COPUOS).
Continue reading “Move Over Artemis Accords! Behold the Lunar Governance Report and EAGLE Manifesto!”
In the past few decades, the number of planets discovered beyond our Solar System has grown into the thousands. At present, 4,389 exoplanets have been confirmed in 3,260 systems, with another 5,941 candidates awaiting confirmation. Thanks to numerous follow-up observations and studies, scientists have learned a great deal about the types of planets that exist in our Universe, how planets form, and how they evolve.
A key consideration in all of this is how planets become (and remain) habitable over time. In general, astrobiologists have operated under the assumption that habitability comes down to where a planet orbits within a system – within its parent star’s habitable zone (HZ). However, new research by a team from Rice University, indicates that where a planet forms in its respective star system could be just as important.
Continue reading “The Elements for Life Depend on Both how and Where a Planet Forms”
It’s often said that in its earliest moments the universe was in a hot, dense state. While that’s a reasonably accurate description, it’s also quite vague. What exactly was it that was hot and dense, and what state was it in? Answering that question takes both complex theoretical modeling and high-energy experiments in particle physics. But as a recent study shows, we are learning quite a bit.
Continue reading “What Happened Moments After the Big Bang?”
The Moon turned a ruddy hue during this morning’s total lunar eclipse, in one of the top astronomical events of the year.
What a celestial show. Depending on your time zone, you either got up early, stayed up late, or pulled an all-niter last night, all in hopes of catching today’s total lunar eclipse. This event favored the Pacific region, with western North American observers catching the eclipse at sunrise/moonset, and Australia, new Zealand and eastern Asia seeing totality transpiring at moonrise/sunset.
Continue reading “Amazing Views of Wednesday Morning’s Total Lunar Eclipse”
Astronaut Peggy Whitson already has her name in the history books, but now there’s a new entry to add: first woman named to head up a privately funded space mission.
Whitson was the first woman to command the International Space Station and the oldest woman to fly in space (57, in 2017). She holds the U.S. record for most cumulative time in space (665 days) as well as the world record for most spacewalks by a woman (10).
Her new claim to fame comes courtesy of Texas-based Axiom Space, which announced on May 25 that Whitson will be the commander of the company’s second orbital mission for private astronauts. The mission known as Ax-2 would follow up on Ax-1, due to visit the International Space Station as early as January.
Continue reading “Record-Setting Astronaut Peggy Whitson Will Command Private Space Mission”
In a new survey, astronomers using the Hubble Space Telescope have managed to pinpoint the location of several Fast Radio Bursts (FRBs). FRBs are powerful jets of energy that, until recently, had mysterious, unknown origins. The research team, which includes University of California Santa Cruz’ Alexandra Manning and Sunil Simha, as well as Northwestern University’s Wen-fai Fong, performed a survey of eight FRBs, from which they were able to determine that five of them originated from a spiral arm in their host galaxies.
Continue reading “Hubble Has Tracked Down the Source of 5 Different Fast Radio Bursts”
A gigantic chunk of ice recently broke off from an ice shelf in Antarctica, and is currently the world’s largest iceberg. The iceberg, dubbed A-76, measures around 4,320 square km (1,670 square miles) in size. At 170 km (106 miles) in length and 25 km (15 miles) wide, the iceberg is slightly larger than the Spanish island of Majorca, and bigger than the state of Rhode Island in the US.
A-76 was captured in the above image by ESA’s Copernicus Sentinel-1 satellite. Below is an animation of the iceberg calving off the Ronne Ice Shelf.
Continue reading “This is Currently the World’s Largest Iceberg”