SUNSET: 
Russia-Ukraine War: Impacts on Space (Updates)
Russia’s ongoing invasion of Ukraine has far-reaching consequences for spaceflight and the international space community.
First Look at an Unusual Exoplanet’s Atmosphere
AAS Nova reports on a "super-puff" exoplanet that's nearly 15 times less dense than Jupiter.
Mission Update: Mars and the Moon
Mission teams presenting at this week's Lunar and Planetary Science Conference provided updates on the Perseverance and Zhurong rovers at Mars, Chang'e 5's lunar sample return, and more.
This Week's Sky at a Glance, March 11 – 19
Sirius, bright dogtag of Canis Major, offers observing challenges day and night. The Big Dipper balances Cassiopeia, and the nearly full Moon occults a Leo star.
How Apollo 17 Is Preparing Artemis for a Return to the Moon
Researchers gear up for Artemis and a new generation of lunar exploration, with a look at samples from the final crewed mission to the Moon.
Largest Molecule Yet Found in Planet-forming Disk
The detection of a complex organic molecule in the disk around an infant star suggests prebiotic chemistry starts in the space between stars.
How Many Moons Can an Asteroid Have?
The discovery of the first quadruple asteroid system raises the question: Is there a limit to how many moons an asteroid can have?
Update from the Hope Probe at Mars
The United Arab Emirates' Hope Probe, on a wide orbit around Mars, provides views of the dynamic Red Planet.
This Week's Sky at a Glance, March 4 – 12
Evenings see the crescent Moon return, Sirius at its peak in the south, and the Dipper and Cassiopeia in balance toward the north. For planets, look to the dawn.
“Closest Black Hole” Doesn’t Exist, After All
Astronomers combined forces to confirm that a black hole proposed to lie a mere 1,000 light-years away isn’t really there.
Meet Shackleton Crater: Future Moon Landing Site
Shackleton Crater at the lunar south pole is a site of future exploration — and you can even see it through your telescope during favorable librations.
Uncovering Secrets of Earth's Shadow
The daily rising and setting of Earth's shadow is a beautiful sight anyone on the planet can view. It's also an opportunity to witness the rapid changes that accompany sunset or sunrise, but at the opposite end of the sky.
Magnetic "Spoon" Feeds Supermassive Black Hole
Astronomers have imaged the magnetic field along which gas flows to a galaxy's central black hole.
March: Sirius in the Spotlight
Whether you’re just getting started in astronomy or simply looking to do some casual sky-watching, our monthly Sky Tour astronomy podcast provides an informative and entertaining 12-minute guided tour of the nighttime sky. Download the March episode to find and learn about Sirius, the brightest star in the night sky.
No Signal from Cosmic Dawn
Four years after one experiment found tentative signs of the "cosmic dawn," the era of the first stars, another experiment finds nothing.
These Two Black Hole Behemoths Will Merge in 10,000 Years
Astronomers have discovered a pair of supermassive black holes that whirl around each other every two years.
This Week's Sky at a Glance, February 25 – March 5
As the winter Milky Way rides high, open star clusters near and far, and from compact to sparse, await your binoculars or telescope, At dawn catch the Venus-Mars pair, and try for the closer Mercury-Saturn pair lower down.
Black Hole Spins Crookedly
Astronomers have found a black hole leaning decidedly askew in its orbit with a star.
Fast Radio Burst's Unlikely Home Puzzles Astronomers
Astronomers have found a fast radio burst — presumably a flash from a young stellar remnant — amongst the ancient stars of a globular cluster, challenging ideas about what produces these enigmatic flashes.
The Parker Solar Probe Captures Surprising Images of Venus Nightside
A visible glow from our sister planet’s nightside sheds new light on a 300-year-old observing enigma dubbed the “ashen light.”
