SUNSET: 
The Black Hole Files with Camille Carlisle
More Black Hole Mergers Found in LIGO Data
Analysis by an independent team has ferreted out seven candidates for gravitational-wave events from merging black holes.
Astronomy in Space with David Dickinson
Work to Save NASA's "Mole" on Mars Continues
NASA engineers hope to use the scoop at the end of the lander's robotic arm to get the Insight lander's heat probe burrowing once again.
Explore the Night with Bob King
Treasure Hunting in the Hall of the Deep-Sky King
Cepheus, the King, has hidden his treasure well but not so much that curious amateurs can't find more than enough to stuff their pockets.
The Black Hole Files with Camille Carlisle
Video: Black Hole Warps Light
The hypnotizing effect of a black hole on its surroundings appears to dramatic effect in this simulation.
Explore the Night with Bob King
Will Amateurs Be Able to See the New Interstellar Comet?
Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?
Astronomy in Space with David Dickinson
CubeSat to Blaze a Trail for Lunar Gateway
NASA's proposed Capstone mission could enter lunar orbit in late 2020.
Imaging Foundations with Richard Wright
Astrophotography: Color Cameras vs. Monochrome With Filters
Which is better for astrophotography, a color camera or a monochrome camera? Both of course!
Cosmic Relief with David Grinspoon
Sea Change on Venus
Tidal drag from a putative ocean might have helped cool our sister planet for billions of years.
Explore the Night with Bob King
Another Interstellar Visitor Is Headed Our Way
An amateur astronomer has discovered a comet that might be the second interstellar visitor after 'Oumuamua — and it's heading for its closest approach to the Sun late this year.
Explore the Night with Bob King
Observe Neptune as it Comes to Opposition
Neptune, currently the Solar System's outermost planet, reached opposition on September 10th at magnitude 7.8 in Aquarius.
Astronomy in Space with David Dickinson
India's Chandrayaan 2 Loses Contact with Vikram Lunar Lander
India's attempt to land softly on the Moon has failed — the Chandrayaan 2 orbiter has lost contact with the Vikram lander.
Explore the Night with Bob King
Volcanoes Turn Twilights Purple
A rash of unusually colorful sunsets follows in the wake of two major volcanic eruptions.
Explore the Night with Bob King
Be a Warrior — Tackle a Trojan Asteroid
You've seen Jupiter and its four brightest moons. Now meet the rest of the family — the Trojan asteroids.
Explore the Night with Bob King
Get to Know the Ghostly Galaxies of Sagittarius
We often think of Sagittarius as home to one galaxy only — the Milky Way. But two members of the Local Group and a smattering of fainter galaxies reside here, too.
Astronomy in Space with David Dickinson
Image Sleuth Spots "Churyumoon" Around Rosetta's Comet
A tiny, 4-meter fragment dubbed Churyumoon has been spotted orbiting Comet 67P Churyumov-Gerasimenko, which the Rosetta mission visited in 2014–2016.
Astronomy in Space with David Dickinson
NASA Selects Final Four Asteroid Landing Sites for Osiris-REX
The Osiris-REX spacecraft will sample one of four sites on the asteroid Bennu in July 2020.
Imaging Foundations with Richard Wright
Shooting Star Trails
Star trail images are a great and fun introduction to nightscape photography, and they're actually pretty easy to do.
Explore the Night with Bob King
Good Morning, Orion!
An August jaunt at dawn reacquaints us with the constellation Orion, the harbinger of winter.
Explore the Night with Bob King
Texas Amateur Detects Possible Impact on Jupiter
It looks like Jupiter got slammed again! A bright flash from a possible impact lit up the planet's South Equatorial Belt Tuesday night.
Explore the Night with Bob King
Perseid Prospects, Mornings with Mercury and the Lunar X
With the Perseid shower, a great morning apparition of Mercury, and a chance to see craters scratch out an X on the moon, skywatchers have a busy week ahead!
