SUNSET: 
Scientists Spot Helium Escaping Giant Planet's Atmosphere
Hubble observations reveal a Jupiter-size exoplanet losing its atmosphere in a system 200 light-years away.
Dwarf Nova V392 Persei Goes Big — It's Now Binocular Bright
In a rare move, a sleepy cataclysmic variable blows its top and suddenly becomes a nova.
Tour May's Sky: Venus Welcomes Jupiter
This month's astronomy podcast tells you how to use Venus and the Big Dipper to find many bright stars and constellations. Meanwhile, Jupiter lurks low in the east after darkness falls.
60-Second Astro News: A Cosmic Butterfly, How Mars Formed Its Moons, and Surviving a Supernova
A short take on astronomy news finds a cosmic butterfly testing theories of galactic evolution, a new idea for the formation of Mars's moons, and the discovery of a stellar thief that survived a supernova explosion.
14 Galaxies Might Become Universe’s Most Massive Structure
At least 14 galaxies are swarming in the early universe, forming a protocluster with the mass of 10 trillion Suns. It might become one of the most massive structures in the universe.
Gaia Maps 1.7 Billion Stars, Widens Cosmic Census
With its second data release, the European Space Agency's Gaia satellite has redefined the way we look at our galaxy.
Seven Nights of Enticing Lunar Sights
Come along for a 7-night tour of some of the Moon's most compelling features visible in small telescopes.
Mud Cracks on Mars Reveal Lake's History
Curiosity spotted polygonal shapes on the surface of rocks on Mars — now, analysis of these mud cracks is revealing the history of the long-ago lake that once filled Gale Crater.
Happy 28th Birthday, Hubble!
To celebrate Hubble's 28th birthday NASA is releasing a brand-new image of the Lagoon Nebula, a vast stellar nursery.
News & Views from the 2018 Northeast Astronomy Forum
The editors of Sky & Telescope report experiences from last weekend's Northeast Astronomy Forum (NEAF) in Suffern, New York — one of the busiest years ever for the world's biggest astronomy trade show.
Pluto's Moon Charon Receives Formal Names
The International Astronomical Union has approved names for features on Pluto's largest moon, Charon.
60-Second Astro News: Tech Advances for Exoplanet Hunters
A mini-satellite demonstrates exoplanet-hunting technology, a superconducting camera tests its abilities to image exoplanets, and bad news for life on Proxima Centauri b.
Meet Polaris, the North Star
Meet Polaris, the North Star. It's not the brightest star in the sky, but it's within a degree of the north celestial pole.
Amateurs Take Huge Panoramic View of the Milky Way — Without a Telescope
This is what the largest available image of the Milky Way using only off-the-shelf photographic equipment looks like.
Successful Launch for NASA’s TESS Exoplanet Mission
The Transiting Exoplanet Survey Satellite (TESS) launched successfully on April 18th at 6:51 p.m. EDT aboard a SpaceX Falcon 9 rocket to survey the entire sky for new worlds.
Gamma-ray Supernova Remnants Shed Light on Cosmic Rays
Astronomers have found the gamma-ray-emitting remains of three exploded stars, and the remnants might reveal the origin of cosmic rays.
The Lyrid Shower Kicks Off Year of Great Meteor Watching
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.
10 U.S. Dark-Sky Parks You Need To Visit
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 has worsened light pollution and skyglow in many previously dark locations. However, the vastness of the U.S. means there are…
Spring Astronomy Day 2018
Looking for something to do on Saturday? Make plans to celebrate Astronomy Day on April 21st!
Globular Clusters Shine in a Galaxy Lacking Dark Matter
You may have seen recent news about NGC 1052–DF2, a galaxy that was discovered to have little or no dark matter. Now, a new study explores what NGC 1052–DF2 does have: an enigmatic population of unusually large and luminous globular clusters.
