If we could detect a clear, unambiguous biosignature on just one of the thousands of exoplanets we know of, it would be a huge, game-changing moment for humanity. But it’s extremely difficult. We simply aren’t in a place where we can be certain that what we’re detecting means what we think or even hope it does.
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Keep the lines of communication open by building your own infrared transmitter
Sponsor Content Created With United States Space Force
Chasing the Eclipse from the Air
A solar-imaging instrument will fly on a high-altitude aircraft to explore infrared emission from the Sun’s corona.
Brown Dwarf Pairs Drift Apart in Old Age
The only thing worse than drifting through space for an eternity is doing it alone. Observations with the Hubble Space Telescope show that brown dwarfs that once had companions suffer that fate. Binary brown dwarfs that were once bound to each other tend to drift apart as time passes.
NASA is holding a total eclipse 2024 briefing tomorrow. Here's how to watch it live
Watch NASA's total eclipse 2024 briefing live and learn about the scientific and transportation plans for the eclipse.
Dwarf Galaxies Could be the Key to Explaining Dark Matter
If you have a view of the southern celestial sky, on a clear night you might see two clear smudges of light set off a bit from the great arch of the Milky Way. They are the Large and Small Magellanic Clouds, and they are the most visible of the dwarf galaxies. Dwarf galaxies are small galaxies that typically cluster around larger ones. The Milky Way, for example, has nearly two dozen dwarf galaxies. Because of their small size, they can be more significantly affected by dark matter. Their formation may even have been triggered by the distribution of dark matter. So they can be an excellent way to study this mysterious unseen material.
SpaceX launching 23 Starlink satellites from Florida this evening
A SpaceX Falcon 9 rocket is set to launch 23 more of the company's Starlink broadband satellites to orbit this evening (March 25).
Live coverage: SpaceX aims for 175th Falcon 9 flight from Cape Canaveral with Monday evening Starlink mission
A Falcon 9 stands ready for the Starlink 6-46 mission from pad 40 at Cape Canaveral Space Force Station. Image: Adam Bernstein/Spaceflight Now.
SpaceX is preparing to launch a Falcon 9 rocket from Cape Canaveral Space Force Station Monday evening with 23 Starlink satellites on board. This mission will mark the 175th launch for SpaceX from its workhorse pad to date.
Intuitive Machines' historic private moon moon mission comes to an end
Intuitive Machines' Odysseus moon lander has failed to send out a wakeup signal, confirming that its pioneering mission is over.
An Asteroid Found Sharing the Orbit of Mars
Astronomers discovered another asteroid sharing Mars’ orbit. These types of asteroids are called trojans, and they orbit in two clumps, one ahead of and one behind the planet. But the origins of the Mars trojans are unclear.
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
With two weeks until April 8's total solar eclipse, the American Astronomical Society is warning buyers about unsafe and counterfeit solar glasses.
'Star Wars' fan-favorite Sith returns in 'Darth Maul: Black, White & Red'
A preview of Marvel Comics' upcoming miniseries, "Darth Maul: Black, White & Red"
3 spaceflyers arrive at the ISS aboard Russian Soyuz spacecraft
A Russian Soyuz spacecraft delivered three spaceflyers, including one NASA astronaut, to the International Space Station today (March 23).
Opposites attract? Not in new experiment that finds loophole in fundamental rule of physics
Like-charged objects were found to clump together while opposites repelled because of the newly discovered "electrosolvation force."
March's Full Worm Moon wriggles its way through a subtle lunar eclipse in stunning photos
The Worm Moon underwent a slightly undramatic lunar eclipse on Sunday, March 24, two weeks before the main event: April's total solar eclipse.
The Sound of an Interstellar Meteor Might Have Just Been a Rumbling Truck
A 2023 expedition to the Pacific Ocean, searching for debris from a suspected extraterrestrial object, may have been looking in the wrong place. A new look at the infrasound data used to locate the point of impact suggests that they may have been confused by the rumblings of a truck driving past.
Saturn's moon Enceladus top target for ESA
A fresh, icy crust hides a deep, enigmatic ocean. Plumes of water burst through cracks in the ice, shooting into space. An intrepid lander collects samples and analyses them for hints of life.
The Chandra X-ray spacecraft may soon go dark, threatening a great deal of astronomy
NASA's recent budget request doesn't offer hope for a leading X-ray astronomy spacecraft. Scientists are pretty worried.
Building ChatGPT-style tools with Earth observation
Imagine being able to ask a chatbot, “Can you make me an extremely accurate classification map of crop cultivation in Kenya?” or “Are buildings subsiding in my street?” And imagine that the information that comes back is scientifically sound and based on verified Earth observation data.
Drilling for water ice on Mars: How close are we to making it happen?
Scientists and engineers are making progress on drilling technology that could access Mars' seemingly vast stores of near-surface water ice.
Astronauts' mementos packed on Boeing Starliner for crew flight test
A NASA astronaut who had the honor of naming her spacecraft will fly items inspired by that name when she launches to the International Space Station.
