SUNSET: 
Explore the Night with Bob King
Equuleus, the Constellation Nobody Knows
Often passed over, the constellation of the Little Horse has charms of its own, including double stars, galaxies, and asterisms. Let's saddle up and go for a ride.
Astronomy in Space with David Dickinson
NASA's Cassini Sees Saturn's Towering Polar Hexagon
Cassini's legacy sheds more light on the strange mystery of Saturn's northern polar hexagon.
Explore the Night with Bob King
Explore the Veil Nebula
The Veil Nebula, the tattered remains of an ancient supernova explosion, is one of the most spectacular objects in the night sky. Did you know it has two dozen parts visible in amateur telescopes?
Explore the Night with Bob King
Comet 21P/Giacobini-Zinner Shines in September
Watch a binocular-bright comet leapfrog across Auriga in the next few weeks before a remarkable conjunction with the bright star cluster, M35.
Astronomy in Space with David Dickinson
Osiris-REX's First Views of Asteroid Bennu
NASA's Osiris-REX asteroid sample return mission spies target Bennu for the first time. Now the spacecraft is setting up for its close approach in December.
Explore the Night with Bob King
See All Eight Planets in One Night
Four planets are great, but how about eight? You can see them all in a single night in the next couple weeks — if you play your cards right.
Imaging Foundations with Richard Wright
Tips for Shooting the Milky Way
It’s summer time, and the Milky Way is beckoning. Here are a few tips to help get you started photographing our galaxy.
Explore the Night with Bob King
Shadow Play — Summertime Dark Nebulae for Binoculars
Using only binoculars, we explore a host of inky dust clouds, the dark nebulae that smudge the Milky Way on late summer nights.
Astronomy in Space with David Dickinson
NASA's Parker Solar Probe Launches to "Touch the Sun"
The unique Parker Solar Probe launched on Sunday, August 12th, set to fly faster and come closer to the Sun than any spacecraft before it.
Explore the Night with Bob King
R Coronae Borealis Awakes and Pluto Blocks a Star
Sometimes, it's just as exciting to watch a celestial object fade or disappear as it is to see it explode. We celebrate the "return" of a mysterious variable star and prepare for Pluto to occult a star.
Explore the Night with Bob King
The Fun Begins at M22
Add a dash of random to your night sky viewing plans and you're guaranteed an adventure. We'll start ours with the famous globular M22 and see where it takes us.
The Black Hole Files with Camille Carlisle
Star Swings Around Black Hole, Tests Gravity
Astronomers have seen a star’s light redden as it passed our galaxy’s central black hole, just as general relativity predicts.
Explore the Night with Bob King
Red Moon Meets Red Planet in Longest Total Lunar Eclipse of the Century
Not only will the Moon will be totally eclipsed this Friday, but Mars will be at opposition and shine in tandem with the red Moon all night!
Astronomy in Space with David Dickinson
HaloSat: A Small Satellite for a Big Question
HaloSat, a mini-satellite recently deployed from the International Space Station, is on the hunt for the universe's missing matter.
Explore the Night with Bob King
PanSTARRS Comet, Rocked by Outburst, Goes Green
Comet PanSTARRS (C/2017 S3) has erupted again! Now bright enough to see in binoculars, it might become a naked-eye object if it survives until perihelion.
Cosmic Relief with David Grinspoon
Advancing the SETI Quest
Hope, perseverance, and the courage of their convictions sustain those seeking hints of alien civilizations and advancing the SETI quest.
Astronomy in Space with David Dickinson
Planet-Protection Policies: Due For Revision?
A new National Academies study assesses NASA's efforts to protect neighboring worlds from contamination and recommends ways the space agency could do a better job.
Explore the Night with Bob King
Observers Anxious for Dust to Settle as Mars Opposition Approaches
With opposition only weeks away, will the current global dust storm finally break? We look at the prospects.
Astronomy in Space with David Dickinson
Nautilus Expedition Recovers Possible Seafloor Meteorites
The expedition off the coast of Washington state performs a first, recovering meteorite fragments from a documented fall.
Imaging Foundations with Richard Wright
Understanding ISO for Astrophotography
Does increasing the ISO on your DSLR make it more sensitive? No! Yes! Depends! Find out how ISO affects your astrophotography.
