SUNSET: 
Astronomy in Space with David Dickinson
SpaceX Launches Latest Batch of Starlink Satellites
A second set of 60 Starlink satellites take to space, amid promise and controversy.
Explore the Night with Bob King
Don't Miss Monday's Rare Transit of Mercury
On Monday, November 11th, Mercury will pass directly in front of the Sun and look a tiny black dot silhouetted against the brilliant solar disk. The event, called a transit, occurs approximately 13 times a century.
Astronomy in Space with David Dickinson
NASA Announces VIPER Lunar Rover
A new NASA rover named VIPER may soon investigate the shadowed poles of the Moon, in preparation for the return of human explorers.
Explore the Night with Bob King
"Potentially Hazardous" Asteroid Is Headed For Your Telescope
A potentially hazardous asteroid makes a flyby of Earth this Friday, offering amateurs with modest telescopes a chance to ride along.
The Black Hole Files with Camille Carlisle
Bubbles, Heated Clouds Point to Active Past for Galactic Center
Two studies support the suspicion that our galaxy’s black hole had one or more outbursts a few million years ago.
Explore the Night with Bob King
Crack Your Crescent Moon Record
Calling all crescent lovers! Here's a chance to set a new personal record by seeing one of the oldest moons ever.
Explore the Night with Bob King
Autumn Comets, Mira's Eye & The Orionid Meteor Shower
Four comets, a famous variable star, and sprinkles of dust from Halley's Comet are highlights of the October sky.
Imaging Foundations with Richard Wright
How to Safely Photograph the Sun (and the Transit of Mercury)
Photographing the Sun can be perfectly safe, as long as you take the proper precautions. You can use these techniques to photograph the November 11th transit of Mercury.
Astronomy in Space with David Dickinson
NASA Launches ICON to Explore Earth's Ionosphere
NASA's Ionospheric Connection Explorer (ICON) launched successfully today to explore the boundary between Earth and space.
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.
