Do Look Up: Asteroid Apophis Will Fly By Earth in Three Years
The close pass of Apophis is nothing to fear. Will you be watching on Friday, April 13, 2029, when this asteroid glides across the sky?
Sky & Telescope Reports: New Telescopes and More at NEAF
Sky & Telescope editors made their annual pilgrimage to the Northeast Astronomy Forum to check out new astro-gear and meet up with contributors and readers alike.
Rubin Observatory Announces 11,000 New Asteroids
The Vera C. Rubin Observatory will discover up to 500,000 solar system objects every year. It’s already starting to deliver on that promise.
This Week's Sky at a Glance, April 10 – 19
A thin crescent Moon points the way to super-difficult Mercury and Mars low in the dawn, then the opposite crescent plays with bold Venus and the Pleiades in evening twilight.
Join Us at the 35th Annual Northeast Astronomy Forum
The weekend of April 11–12 marks the return of the world’s largest astronomy and space expo with telescopes, cameras, and activities for the entire family.
Light Pollution Is Increasingly Variable Around the World
Scientists have unveiled a new dynamic view of our world at night, showing for the first time a night-by-night view of changes in light pollution.
Amazing Views From Artemis 2’s Historic Lunar Flyby
The Artemis 2 crew set records and provided amazing views — with more to come — as they journeyed around the Moon.
This Week's Sky at a Glance, April 3 – 12
Arcturus, the Spring Star, is on its way up in the east. Vega, the Summer Star, rises later in the evening. Jupiter shines high toward the southwest.
Do the Moon’s Poles Hold Less Water Than We Thought?
New observations reveal that permanently shadowed regions at the lunar poles might contain less water ice than astronauts were hoping for.
Dawn Comet C/2025 R3 (PanSTARRS) May Hold a Surprise
If we're lucky, we'll soon have bright comets at both dawn and dusk.
Artemis 2 Mission Launches for Trip Around the Moon
NASA’s Artemis 2 mission has departed Earth, as humans return to cis-lunar space after more than 50 years.
Astronomers Play April Fool’s
From pizza "flavor zones" around stars to therapy sessions for black holes, astronomers are in fine form on this April 1st.
Have We Found the Black Hole Desert?
Astronomers disagree on whether they’ve found evidence that stars don’t make certain sizes of black hole.
New Astro Images: Saturn, the Crab Nebula, and a Newborn Planet
Striking images from Hubble, Webb, and the Very Large Telescope dive into Saturn's atmosphere, capture the Crab Nebula's expansion, and reveal a newborn planet.
April Podcast: Spotlight on Gemini
This month’s episode showcases the stars and planets visible on April evenings. We’ll explore full-Moon quirks; spot Venus and Jupiter after sunset; learn about Gemini, the celestial twins; and hunt for meteors toward month’s end. So grab your curiosity, and come along on this month’s Sky Tour.
White Dwarf Discovered Gobbling Material from Gamma Cassiopeiae
Powerful X-rays from the nearby naked-eye star Gamma Cas mystified astronomers for decades. Now, a new observatory reveals that they come from its white dwarf companion.
This Week's Sky at a Glance, March 27 – April 5
Winter's gone, but the Winter Hexagon remains (for now). Trace out this gigantic asterism right after dark before it sinks. Jupiter glares inside its top.
Comet Break-Up Caught In Action
The Hubble Space Telescope caught a long-period comet breaking up just after it passed the Sun.
Many Waters May Have Mixed on Mars
New analysis shows alkaline and acidic water may have mixed beneath the Martian surface, creating an environment that could theoretically have supported life.
Brown Dwarfs Dance Unexpected Tango
Two brown dwarfs are whipping around each other in a tight tango — an unexpected dance for objects that are not-quite-stars and not-quite-planets.
