SUNSET: 
The Black Hole Files with Camille Carlisle
How Does the Event Horizon Telescope Work?
The Event Horizon Telescope creates the image of a black hole shadow thanks to the precise coordination of a worldwide telescope network. Here’s how they do it.
Astronomy in Space with David Dickinson
Israel's Beresheet Mission Crashes on the Moon
SpaceIL attempted, but missed, a historic first for private spaceflight and Israel — a soft landing on the Moon.
The Black Hole Files with Camille Carlisle
Scientists Unveil First Black Hole Image
The Event Horizon Telescope collaboration has reconstructed the shadow of a supermassive black hole.
Explore the Night with Bob King
Yanking Markarian's Chain
Markarian's Chain, a remarkable arc of bright galaxies, is your ticket to the Virgo Cluster. Hop aboard!
Northern Lights of Finland: Check!
Sky & Telescope's latest tour to catch the aurorae was a fun-filled adventure in the northern reaches of Finland.
Astronomy in Space with David Dickinson
What India's Anti-Satellite Test Means for Space Debris
A recent anti-satellite missile test by India added hundreds of pieces of debris to an already cluttered low-Earth orbit.
Astronomy in Space with David Dickinson
Curiosity Sees Phobos Transit . . . After Sunset
NASA's Curiosity rover just spied transits of both Martian moons across the face of the Sun — including one that happened after the Sun had set.
The Black Hole Files with Camille Carlisle
Could Dark Matter Be Black Holes?
Astronomers are reconsidering primordial black holes as an answer to the invisible matter mystery, but recent observations disfavor at least some sizes of black hole.
Explore the Night with Bob King
Twinkle, Twinkle Quasi-Star — 12 Quasars for Spring Evenings
Quasars are among the brightest and most distant objects in the universe. Many are visible in amateur scopes if you know just where to look. We'll help you track them down.
Explore the Night with Bob King
Pop in on Pallas and Iris Tonight
Break out your binoculars or telescope the next clear night for a peek at the bright asteroids Pallas and Iris, both at opposition this spring.
Astronomy in Space with David Dickinson
Quaking Aspen Leaves Inspire Potential Power Source For Mars Rovers
A unique concept could serve as an emergency power backup for future missions.
Explore the Night with Bob King
Amazing Images Capture Giant Fireball Exploding Over the Bering Sea
A powerful fireball exploded over the wilds of eastern Russia last December. Satellites captured the whole thing.
Explore the Night with Bob King
It's Spring! Time to Visit the Bright Galaxies of Leo I
Springtime is galaxy time. Only 30 million light years away, the Leo I Group and nearby Leo Triplet entice the eye with an assortment of bright spiral and elliptical galaxies. Welcome to spring! The new season begins (or began depending on when you read this) at 5:58 p.m. EDT on…
Imaging Foundations with Richard Wright
Astro-Imaging: Don't Throw A FITs, Man!
The FITS file is so much more than just an image format. If you're looking to get serious about deep-sky astrophotography, here's what FITS can offer you.
Cosmic Relief with David Grinspoon
Sudden Impact: What Greenland's Crater Means for Our Planet's History
The discovery of a recent huge meteor crater beneath Greenland’s ice sheet has reignited a debate over cosmic influences.
Astronomy in Space with David Dickinson
NASA 2020 Budget Proposal Boosts Exploration, Downplays Science
NASA's Lunar Gateway and a return to the Moon are the big winners in the 2020 budget proposed for the agency; the futures of planetary and Earth science are less clear.
Explore the Night with Bob King
Deep-sky Hunting in Cancer, the Crab
As winter melts into spring, we sample both familiar and overlooked deep-sky treasures in the "empty space" between Gemini and Leo, home of the Crab.
Astronomy in Space with David Dickinson
Mars Insight's "Mole" Hits a Snag
Drilling operations for NASA's Mars Insight Lander have been put on hold as the "mole" has hit unexpected obstacles.
Explore the Night with Bob King
How to See Sirius in the Daytime
Spotting Sirius in broad daylight may be easier than you think! Here's how to do it.
Explore the Night with Bob King
A Zodiac Ramble . . . with a Few Fun Detours
Take a trip along the ecliptic from dusk till dawn to check out the sights along this well-traveled highway — the zodiacal light, Mercury, and the gegenschein, plus scenic detours to a comet and asteroid.
