SUNSET: 
Mars Dust Storm Grows — Curiosity's Skies Darkening
The dust storm on Mars that broke out at the end of May is now affecting the skies across the entire planet.
Pulsar Limits “Fifth Force” Interactions with Dark Matter
A recent experiment to better understand the nature of dark matter constrains a possible "fifth force" of nature to almost zero.
Summer Star Party Season Is Here!
Summer star party season has begun - grab your scope or binoculars, pack a sleeping bag, and come and join the fun!
Observe Changes on Mars
The nearby Red Planet displays remarkable changes every apparition. Whenever Mars approaches opposition, keep an eye out for some of these differences.
Black Hole Destroys Star and Shoots Jet
Astronomers have watched the growth of a jet fueled by a shredded star.
The Aftermath of GW170817: Neutron Star or Black Hole?
A team of scientists says we now have an answer to one of the biggest mysteries of GW170817: after the neutron stars collided, what object was formed?
NASA's Dawn Probe Reaches Its Low, Final Orbit
NASA's Dawn spacecraft has entered a new and final orbit that will take it less than 30 miles above the surface of asteroid Ceres.
Too Many Massive Stars in Universe's Youngest Galaxies
A new method of measuring star formation in the earliest galaxies finds that they’re producing more massive stars than expected — a result that could affect our understanding of how galaxies grow their stars.
Apollo Astronauts Warmed the Moon
A new study sheds light on an old mystery surrounding anomalous readings from the Apollo landing sites.
No Planet Nine? Small-body Pile-up Could Explain Odd Orbits
New research shows that interactions between small objects beyond Neptune’s orbit —and not a hypothetical Planet Nine — could be the reason some far-flung solar system objects “detach” from their original orbits.
60-Second Astro News: Old Stars, New Clues, and New Dark-Sky Place
This week: Stars in the Milky Way's outskirts give clues to our galaxy's history, ancient stellar cities might not be as old as they appear, and the International Dark-sky Association awards its 100th Dark Sky Place.
A Massive Neutron Star with a Two-Faced Companion
How massive can a neutron star get? In a recent study, scientists may have identified the most massive neutron star yet — by leveraging observations of its highly irradiated companion.
Methane and Other Organics on Mars
The Curiosity rover has detected organic molecules in ancient rocks on Mars.
More Mystery Objects in the Galactic Center
Astronomers have discovered three more red, dusty objects near the Milky Way’s central black hole that could be merged stars.
What’s Going On with Tabby’s Star? It’s Complicated
Two new studies — one by a group of high school students — are investigating the strange environment around Tabby's Star.
Astronomers Discover Lonely Neutron Star with a Curious Past
New observations have helped astronomers identify the source of a 2,000-year-old supernova explosion. But this blast, and the neutron star that created it, seem to have a curious history that defies explanation.
Asteroid 2018 LA Explodes Over Botswana Hours After Discovery
Don't look now — it's already gone! Asteroid 2018 LA screeched into Earth's atmosphere only 7 hours after its discovery to create a Sun-bright spectacle over South Africa and Botswana.
Curiosity Rover is Drilling Again
An innovative technique has allowed NASA's Curiosity Rover to resume drilling Martian rocks. But the partially successful test shows that more work remains to be done.
Why Are the Galilean Moons So Massive?
Scientists propose that Saturn’s meddling helped create the four giant Galilean moons orbiting Jupiter.
Tour June's Sky: Venus, Jupiter & Saturn
As you'll learn in this month's astronomy podcast, Jupiter and Saturn will compete with brilliant Venus for your attention in the late-evening sky.
