SUNSET: 
Astronomy in Space with David Dickinson
NASA Closes Out Its Asteroid Redirect Mission
Following the release of the 2018 budget, the space agency has ordered an “orderly closeout” for the Asteroid Redirect program.
Explore the Night with Bob King
Fun in the Sun: A White-Light Guide to Our Nearest Star
We examine the fascinating solar phenomena that anyone with a small scope and safe solar filter can see, whether the Sun's in eclipse or not.
Astronomy in Space with David Dickinson
China Launches Its First X-ray Observatory
China's Hard X-ray Modulation Telescope (HXMT) headed to orbit this past weekend.
Explore the Night with Bob King
Hello, Saturn! We're Glad You're Back
Saturn, considered by many the most beautiful sight in the sky, comes to opposition this week with its rings in full tilt. You won't want to miss it.
Astronomy in Space with David Dickinson
Rosetta Finds Clues to Earth's “Xenon Paradox”
Xenon measured by the European Space Agency's Rosetta spacecraft has shed light on a long-standing mystery about the role comets played in Earth's formation.
Astronomy in Space with David Dickinson
KELT-9b: Hottest Hot Jupiter Exoplanet Yet
Astronomers announce the discovery of bloated gas giant KELT-9b, the hottest "hot Jupiter" exoplanet known orbiting a short-lived massive star.
Explore the Night with Bob King
Nights of the Living Dead — What Stars Leave Behind
Stars leave interesting messes after they die: diamond-studded puffballs, neutron stars, and black holes. We explore an example of each in June's night skies.
The Black Hole Files with Camille Carlisle
LIGO Detects Third Black Hole Merger
Scientists with the gravitational-wave observatory announce another discovery, this time of a black hole merger twice as far away as previous detections.
Astrophotography with Jerry Lodriguss
Linear vs. Stretched Images
When shooting with digital cameras, images will appear very dark and low-contrast, because raw data is linear. To make details visible, we must stretch the data.
Explore the Night with Bob King
Watch Venus and Uranus Double Up Beneath a Comet
Following an occultation of Rho Leonis by the Moon, watch Venus and Uranus pair up in a weekend conjunction just 10° from Comet ER61 PanSTARRS.
Astronomy in Space with David Dickinson
New Clues on Fate of Schiaparelli Mars Lander
The European Space Agency has released its investigation into the crash of the Schiaparelli Mars lander in October 2016.
Explore the Night with Bob King
New Impact Flash Seen on Jupiter
Flash! A comet or asteroid fragment whacked Jupiter on May 26th. It's the sixth time that observers on Earth have witnessed an impact on the giant planet.
Astronomy in Space with David Dickinson
Juno: Surprises in First Science Results
From its dynamic atmosphere to its hidden depths, the Juno spacecraft has Jupiter as never before — surprising NASA scientists with unexpected complexity.
Explore the Night with Bob King
The Summer Triangle Makes its Midnight Debut
Stay up late and you'll see the return of one of the sky's most familiar asterisms, the Summer Triangle. Firefly nights under the arch of the summertime Milky Way will soon be here.
Cosmic Relief with David Grinspoon
Not Venus Again
Once more, NASA leaves our sister planet out of the mix of new missions. Ouch.
Road Tripping Space: Visiting Meteorites in Africa
Traveling through space can be a bumpy ride! Join Govert Schilling on a scenic road trip across southern Africa filled with craters and meteorites.
Explore the Night with Bob King
Gobs of Globs — Tour 16 Spring Globular Clusters
Chandeliers of the galaxy, these distant stellar swarms fire our sense of wonder. Hop on and we'll tour 16 of season's finest!
Explore the Night with Bob King
Bright Supernova Discovered in "Fireworks Galaxy" NGC 6946
A brand new supernova in NGC 6946 is bright enough to see in modest-sized telescopes. Here's how to find it.
Astronomy in Space with David Dickinson
Amazing New Views of Near-Earth Asteroid
Large asteroid 2014 JO25 cruised past Earth on April 19, and Goldstone and Arecibo radars were at the ready to capture what turned out to be yet another twin-lobed asteroid.
Explore the Night with Bob King
Watch Comet Johnson Sprint Through Boötes
Another binocular comet? You better believe it. Comet Johnson takes center stage at nightfall this month and next.
