SUNSET: 
Astronomy in Space with David Dickinson
Space Missions to Watch in 2019
Multiple trips to the Moon, physics satellites, and Europe's long-awaited exoplanet explorer are among the space missions on tap for 2019.
Explore the Night with Bob King
Venus Occults a Star and Mercury Joins Jupiter on the Winter Solstice
Bring in winter with a bang with a beautiful, close conjunction and a rare planet-star occultation.
The Black Hole Files with Camille Carlisle
What LIGO Teaches Us About Black Holes
The rising count of gravitational-wave events is giving us a new look at a once-invisible population of black holes.
Imaging Foundations with Richard Wright
Astrophotography: Let's Get Linear
Richard Wright explains the importance of linearity — a measure of how a detector accumulates lights — in getting the most from your space images.
Explore the Night with Bob King
Chasing Comet 46P/Wirtanen as the Moon Looms
Learn how chase away the Moon to keep Comet 46P/Wirtanen in a dark sky. Here's an update on the comet's progress and what to look for in the coming nights.
Explore the Night with Bob King
Spend an Hour with the Geminid Meteor Shower
Move over 46P/Wirtanen, it's time for the Geminids, the richest meteor shower of the year.
Astronomy in Space with David Dickinson
Chang'e 4 Probe Heads to the Lunar Farside
China's latest lunar mission will drop a lander and rover in one of the oldest terrains on the Moon, becoming the first craft to intentionally land on and explore the farside.
Explore the Night with Bob King
Mars and Neptune Have a Close Shave
Want to find Neptune the easy way? Just point your binoculars or telescope at Mars the next few nights, when the two planets will be in close conjunction.
Explore the Night with Bob King
SpaceX Launches Orbiting "Sculpture in the Sky" / Comet Update
An art sculpture achieves orbit, 46P/Wirtanen becomes a naked-eye comet, and C/2018 V1 makes one last good pass.
Astronomy in Space with David Dickinson
Osiris-REX Arrives at Asteroid Bennu
NASA's ambitious Osiris-REX mission will now spend the next couple years surveying Bennu before attempting to return a sample to Earth.
Cosmic Relief with David Grinspoon
Clouds: A Nebulous Existence
In David Grinspoon's latest column, he discusses how, for both Venus and Earth, life's last refuge might lie in the clouds.
Explore the Night with Bob King
Supernova Discovered in the Bright Galaxy M77
A new supernova in the bright galaxy M77 in Cetus is within range of amateur telescopes. Here's how to find it.
Explore the Night with Bob King
Seeking Cas A, the Ghostly Remains of a Mysterious Supernova
We still don't know for sure if anyone saw the supernova explosion in Cassiopeia around 1680, but there's no question we can observe what remains of it today.
Astronomy in Space with David Dickinson
Insight Lander Touches Down on Mars
After a safe landing, NASA's first dedicated geophysical mission to Mars will spend the next two years studying the deep interior of the Red Planet.
Explore the Night with Bob King
Gobble Up a Rare Thanksgiving Full Moon
This week, we give thanks for all the good things in life including a rare event — a full Moon on Thanksgiving. Make it your dessert after the big meal.
Astronomy in Space with David Dickinson
Jezero Crater Selected as Landing Site for Mars 2020 Rover
NASA's next Mars rover will explore a geologically diverse crater that may once have been flooded with water, a crucial ingredient for the mission's search for evidence of past life.
Explore the Night with Bob King
Ducks in Disguise or How Stars Hide Their True Colors
Do star clusters form all at once or over several generations? A team of astronomers finds an answer among the spinning stars of an amateur favorite, the Wild Duck Cluster.
Explore the Night with Bob King
Exoplanets for Autumn Evenings
Exoplanets pepper the night sky. We may not be able to observe them directly, but we can use their host stars as surrogates to envision them in our mind's eye.
Imaging Foundations with Richard Wright
What Magnification Is That?
Telesope magnification is much more complex than it might seem at first glance.
Explore the Night with Bob King
Amateur Don Machholz Discovers His 12th Comet! (Updated)
Arizona comet hunter Don Machholz did it again! He discovered his 12th comet only two mornings ago. Set your alarm, grab your scope, and take a look.
