SUNSET: 
Explore the Night with Bob King
Walking with Arcturus
Stars are time machines that can transport us into the past or future. They can also illuminate our own personal journeys, as Arcturus did for me one night.
Cosmic Relief with David Grinspoon
Alien Visitor
The first interstellar object seen entering the solar system is really quite bizarre.
Imaging Foundations with Richard Wright
PixInsight vs Photoshop: Which is Better for Astrophotography?
Is it possible to settle the PixInsight vs. Photoshop debate once and for all? Yes: Learn both and gain the skills you need to make better astrophotos!
Explore the Night with Bob King
Budding and Ancient Star Clusters of the March Sky
Open clusters present a mystery. Some fall apart in a few hundred million years, others hang around for billions. Join me as we visit both the youngest and oldest star clusters in the Milky Way.
Astronomy in Space with David Dickinson
Rocket Barrage to Study Northern Lights
A series of 11 sounding rocket flights from two remote locations in the Arctic circle will help unlock the secrets of the processes behind the Northern Lights.
Explore the Night with Bob King
Full Moon Is Tycho Time
With this week's full Moon, the dazzling crater Tycho will be in full regalia. Time to catch some rays!
Explore the Night with Bob King
Venus Peeps Back Into View at Dusk
After a long drought, a bright planet emerges in the western sky. Welcome back, Venus!
Astronomy in Space with David Dickinson
NASA Budget Proposal Cancels WFIRST
The recent budget proposal for NASA dealt a blow to the astronomical community, putting several key missions — including WFIRST, a successor to Hubble — under the financial axe.
Imaging Foundations with Richard Wright
How to Capture the Clearest Astro Images
Capturing crystal-clear astro images involves a delicate balance of having just enough pixels for the object you're imaging. But you don't need a PhD to understand the sampling theory that's involved.
Explore the Night with Bob King
A Winter Night's Sojourn in Orion's Belt
Orion's Belt is a magnetic sight on February nights. Take the bait and revel in a bounty of double and multiple stars, nebulae, and more.
Explore the Night with Bob King
Asteroid 2018 CB Zips by Earth Friday: Watch it Online
Newly-discovered asteroid 2018 CB will be passing only about 44,000 miles away Friday and visible in modest telescopes.
Explore the Night with Bob King
Humanity Star: Bright Idea or Dark Sky Nemesis?
The launch of the Humanity Star has some fuming, others smiling, at the prospect of seeing a bright, new satellite. What do you think?
Astronomy in Space with David Dickinson
Explorer 1: NASA Marks 60 Years in Space
60 year ago today, a small satellite ushered in the U.S. space program in a big way.
Explore the Night with Bob King
Make the Most of January's Total Lunar Eclipse
An unusual dawn total lunar eclipse presents special challenges and great photo opportunities. Here's what you need to know to make the most of it.
Astronomy in Space with David Dickinson
NASA Unveils New Power Source for Space Exploration
The Kilopower fission reactor will offer a more efficient and more powerful portable power source for solar system exploration.
Cosmic Relief with David Grinspoon
Cosmic Communion: A Total Solar Eclipse
Last summer's total solar eclipse provided a profound moment of celestial accord for millions of Americans.
Explore the Night with Bob King
Michigan Meteorite Tally Multiplies
They look like leftover gravel from a freshly laid asphalt road, but the black stones that spattered across the snow in the wake of the January 16th Michigan fireball were anything but terrestrial. They belonged to a tiny asteroid on a recent foray to the outer asteroid belt but now…
Explore the Night with Bob King
Mira Makes January Nights "Wonderful"
Mira, one of the easiest-to-observe pulsating variable stars, reaches peak brightness this month. Don't be shy, come look her in the eye.
Imaging Foundations with Richard Wright
Framing Your Astro Images: Understanding Field of View and Pixel Scale
Knowing your astrophotography setup's pixel scale will help you take better pictures. And to determine pixel scale, you first need to know your field of view.
Explore the Night with Bob King
Catch these Comets in 2018
We look ahead to see what fuzzy visitors, new and returning, will brighten the nights ahead. One and possibly two naked-eye comets are on the way.
