41–60 of 6,142 results
Comet 13P/Olbers

Explore the Night with Bob King

Comet 13P/Olbers Juices Up June Skies

June brings heat and bugs but also a moderately bright, early-evening comet that returns every 69 years.


Astronomy in Space with David Dickinson

Whirlwind Chang’e 6 Mission Collects Lunar Samples, Heads Back Home

China Chang’e 6 mission has landed on the Moon and is now set to perform another first: a sample return from the lunar farside.

Red dwarf star with large convective cells at left, while at right looms the bulk of an Earth-size terrestrial planet colored in mottled brown and hanging onto a thin, blue veneer of an atmosphere


Astronomers Discover New Earth-size World Only 40 Light-Years Away

This nearby terrestrial world might just reveal the secrets of atmospheric composition and habitability for planets like Earth and Venus.

Ophiuchus the Serprent Holder

Sky Tour Astronomy Podcast

June Podcast: Spotting the Serpent Charmer

Listen to this tour of the stars and planets that you’ll see overhead during June. Learn how to spot three planets before dawn, and to track down a snake-handler in the early summer sky. Grab your curiosity, and come along on this month’s Sky Tour.


Space Missions

Voyager 1 and Its Instruments Are Back Online (Updated)

Voyager 1 is once again returning data from two of four science instruments onboard.

Big Dipper with the stars labeled with the years the light we see in 2024 left them. (Image: IAU/ Arya Anthony)

Celestial News & Events

This Week's Sky at a Glance, May 31 – June 9

Arcturus and Vega highlight the evening, The Big Dipper quickly pivots. And sorry, tell your friends and family who ask that no "dazzling Parade of Planets" is blazing across the sky. Who makes this stuff up??

First look at Dinkinesh and its satellite

Solar System

NASA's Lucy Mission Reveals Asteroid's Strange Moon

The asteroid Dinkinesh surprised NASA’s Lucy mission when it turned out to have a moon. Now, scientists are taking a closer look at the pair’s formation.

Euclid's five images


Euclid’s Revolutionary New Images

The Euclid mission has released five new panoramas of celestial objects that are stunning in both their breadth and depth.

orange-colored landscape of a gently sloping mount with flows highlighted in red

Solar System

Venus’s Volcanoes Live

The evidence is in: Venus is volcanically active.

massive white star with black hole transiting in front of it

Black Holes

Did This Black Hole Form Without a Supernova?

Some massive stars may collapse completely into black holes — without the fanfare of a supernova.

Moon and Saturn, May 31, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, May 24 – June 2

The Big Dipper twists around fast near the zenith, Arcturus almost claims the zenith, the Coma Star Cluster not far away can't quite hide, and T Cor Bor simmers ominously dim.

Three panels are shown showing an increasingly small area of the PRIMER galaxy field. The first image shows a large field of galaxies on the black background of space. The second image shows a smaller region from this field, revealing the galaxies in closer detail, appearing in a variety of shapes and colours. The final image shows the ZS7 galaxy system, revealing the ionised hydrogen emission in orange and the doubly ionised oxygen emission in dark red.

Black Holes

Webb Telescope Finds Most Distant Black Hole Merger

A new JWST study has found evidence of two galaxies colliding 740 million years after the Big Bang.

Galilaei crater May 20, 2024

Explore the Night with Bob King

Why Did Galileo Get Such a Puny Crater?

Galileo was one of the first people to study the Moon through a telescope. You'd think he'd get more than 10-mile-wide crater for his efforts. But of course, there's more to the story.

Star engulfing planet


Astronomers Reopen the Mystery of a Planet That Shouldn’t Exist

New research may have revived the mystery of 8 Ursae Minoris b, a seemingly doomed exoplanet that shouldn’t exist.

Aldebaran about to be occulted by the waning gibbous Moon in daylight, Oct. 2, 2015

This Week's Sky At a Glance

This Week's Sky at a Glance, May 17 – 26

This week the Moon occults Beta Virginis, then Antares. The last star of the Summer Triangle finally rises before bedtime. On the other side of the sky, the Arch of Spring sinks low.

Cometary Globule

Stellar Science

Cosmic "Hand" Reaches for the Stars

This oddly shaped cloud of dusty gas is shaped by the winds and radiation from nearby stars.



Planet Candidate Could Be Incandescent with Lava Flows

A new planet candidate discovered in data from NASA's TESS mission could be an extreme lavaworld, pushed and pulled by the gravity of its own star and two other close-in planets.

Trumpler 22 star cluster

Night Sky Sights

Explore the Star Clusters of Centaurus

This large constellation abounds in deep-sky delights, including many fine open star clusters.

Sheets of aurorae

Astronomy & Observing News

See Photos of the Widespread Aurorae Last Weekend

An extreme (G5) geomagnetic storm hit Earth last weekend, delighting viewers as far south as Florida with green and red curtains of light.

Aurora prequel

Celestial News & Events

Severe Geogmagnetic Storm Has Arrived! Auroral Blast Expected Friday Night

A severe geomagnetic storm has just hit Earth — which means we could see auroras tonight! Here's what you'll need to know.