SUNSET: 
Asteroid Samples Reveal Long Journey through the Solar System
Analyses of just 5.4 grams scooped from the asteroid Ryugu are delivering rich new insights into the history of the solar system.
Lost Star Catalog of Ancient Times Comes to Light
Technology may have revealed a piece of the long-lost works of Greek astronomer Hipparchus, one of the greatest astronomers of antiquity.
National Science Foundation Will Not Rebuild Arecibo
While the NSF plans to establish an educational center at the Arecibo Observatory, the institution has stated it will not fund science there.
This Week's Sky at a Glance, October 21 – 29
Jupiter remains near its maximum possible size, and Mars continues to grow. Below Jupiter shines the Frog Star. And this week, Arcturus becomes the Ghost of Summer Suns.
Amateur Finds New Images of Uranus’ Rings in 35-Year-Old Data
What else is hidden in archival data?
All About the Dust — Orionids and Zodiacal Light
It doesn't take much to create a spectacle when it comes to astronomical observation. Just a pinch or two of dust.
Brightest Gamma-Ray Burst Yet Lights Up the Sky
A recently detected gamma-ray burst GRB 221009A was so intense that it temporarily blinded instruments and disturbed Earth’s atmosphere.
Tentative Evidence of the First Generation of Stars
Scientists have detected something unusual around a distant quasar — perhaps the first real evidence of a first-generation star.
This Week's Sky at a Glance, October 14 – 22
These moonless evenings open the sky for good constellation spotting and deep-sky probing. Pegasus flies high. Draco eyes Vega. And it's time for the Orionid meteors.
Lucy Mission Will Zoom By Earth This Weekend
With a little luck, observers in Australia and western North America may spy the Lucy spacecraft as it flies by Earth on October 16th.
Winking Stars Help Map Asteroids — and Discover a New Moonlet
An innovative method enables astronomers to gauge the size and shape of a distant asteroid — and potentially any km-scale object in the solar system.
Dance of Giant Stars Creates Ripples of Dust
Every time two giant stars swing around each other, they enrich the cosmos with complex organic molecules.
DART Asteroid Redirect Test Wildly Successful
They needed to shorten the moon’s orbit by 73 seconds. They shortened it by more than half an hour.
Chinese Observatory Will Study Violent Events on the Sun
China has sent up the ASO-S space observatory to study solar flares, eruptions, and the Sun’s magnetic field.
Speeding Cloud Might Come from Recent, Nearby Supernova
Hypervelocity clouds, generally thought to be falling fast into the Milky Way, might have an alternative explanation that places them near us.
This Week's Sky at a Glance, October 7 – 15
The bright Moon this week passes Jupiter, then Mars. Deep-sky darkness starts returning to the evening sky on the Thursday the 13th. The bulky Andromegasus Dipper is on autumn display.
Astronomers Map the Milky Way's "Underworld"
A simulated map of the Milky Way shows the location of our galaxy's stellar corpses — and they're not where you might think they'd be.
Observing the Full Moon: Fringe Benefits
The upcoming Hunter's Moon reminds us of the many ways we can enjoy observing our humble satellite.
Juno's Close View of Jupiter's Europa (New Photos!)
Juno will pass over the surface of Europa this week in our closest view since the Galileo mission, aiding future exploration efforts.
Meet Scheat, the Peak of Pegasus
Meet Scheat, the orange giant star that peaks the Great Square of Pegasus in autumn skies in the Northern Hemisphere.
