The International Astronomical Union has approved names for features on Pluto's largest moon, Charon.
The annual Lyrid meteor shower will shoot off silent fireworks on Earth Day this Sunday. We explore the shower's origin and how best to view and photograph it.
To mark International Dark Sky Week (April 15–21, 2018), here are some of the nation's finest stargazing spots, where artificial light is all but absent. There’s a simple rule for anyone searching for a dark sky; go somewhere others are not. The spread of LED lighting in North America over the past decade or so…
You don't need a PhD to understand noise in astronomical images — here's an introduction to the various sources of noise in astrophotography and how to combat them.
Stare up at the Milky Way band on a dark night and you'll see missing pieces from clouds of foreground dust that absorb the light of distant stars. There are other mottled "milky ways" just like ours, millions of light-years away.
The European Space Agency's ARIEL mission will seek to analyze the atmospheric composition and true nature of distant worlds.
The sky's been bursting with exploding stars this season. Plus there's a new storm on Saturn. What's a skywatcher to do? Haul out the scope!
We lift the Lion's paw to find a bright, red variable star, a germinating planetary nebula, galaxies rarely visited, and a diversity of doubles.
China's first space station reentered Earth's atmosphere over the South Pacific after almost seven years in space.
Southern Hemisphere objects like Omega Centauri and the Magellanic Clouds make Northern Hemisphere observers envious. Today, we turn the tables and find out what those living in negative latitudes would love to see up north.
China's premier space station, Tiangong 1, has a one-way ticket into the Earth's atmosphere later this month. See it before it's no more.
David Grinspoon on ‘Oumuamua, the first interstellar object seen entering the solar system: it's really quite bizarre.
Last summer's total solar eclipse provided a profound moment of celestial accord for millions of Americans.
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.
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!
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.
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.
With this week's full Moon, the dazzling crater Tycho will be in full regalia. Time to catch some rays!
After a long drought, a bright planet emerges in the western sky. Welcome back, Venus!
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.
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.
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.
New Horizons' next target, 2014 MU69, was hard to find and remains a bear to pin down, but persistence has paid off.
Newly-discovered asteroid 2018 CB will be passing only about 44,000 miles away Friday and visible in modest telescopes.
The launch of the Humanity Star has some fuming, others smiling, at the prospect of seeing a bright, new satellite. What do you think?