41–60 of 615 results

Solar System

The Sun Gets Its Close-up: Images from New Solar Telescope

The Daniel K. Inouye Solar Telescope shows some stunning detail on the Sun, including sunspots, fibrils, granules, and other solar textures.

Supernova Refsdal in widefield image of galaxies

Cosmology

Replay of Star’s Death Sheds Light on Universe’s Expansion

A cosmic lens magnified the light of an exploding star. Now, astronomers are using observations of that supernova to calculate the universe’s current rate of expansion.

bands of red rocks on a red planet

Solar System

New Photos from NASA's Perseverance and Juno

NASA spacecraft are constantly sending back images from across the solar system. Here are two that caught our eye.

Exoplanets

Mini-Neptune Reveals (Some of) Its Secrets

James Webb Space Telescope observations offer a new window inside the atmosphere of the secretive sub-Neptune GJ 1214b.

stylized atoms sprayed over a field of black

Stellar Science

Astronomers Find the Remains of the Universe’s First Stars

The first stars are too faint and far away to detect directly, but their gaseous remains can be seen absorbing the light of distant galaxies.

2013 Astronomy Day celebration in Boston

People, Places, and Events

Celebrate Astronomy Day This Weekend!

On Saturday, April 29, 2023, come out and celebrate Astronomy Day! Here are some easy ways that you can explore the sky.

The planet Uranus on a black background. The planet appears light blue with a large, white patch on the right side. The image is labelled to indicate the locations of the planet’s clouds, polar cap, and zeta ring

Solar System

James Webb Space Telescope Captures Another Ringed Planet

Webb has returned an image of ringed Uranus, currently experiencing the dog days of northern hemisphere summer.

Visualization of airless TRAPPIST-1b and its red dwarf star host

Exoplanets

Exoplanet TRAPPIST-1b Has No Atmosphere

The TRAPPIST exoplanets offer the James Webb Space Telescope some of the best opportunities to observe rocky worlds. But Webb images show the innermost planet b has no atmosphere.

3C 297

Galaxies

This Galaxy Is Powerful, But Lonely Too

A large elliptical galaxy spewing a black hole–powered jet might have eaten its neighbors, leaving it on its own.

Sulphur-tinged volcano rises above surface on Venus

Solar System

Finally! Scientists Find Active Volcano on Venus

After decades of searching, scientists have finally found a clear sign of active volcanism on Venus.

X7 spaghettifying

Black Holes

Watch the Milky Way’s Black Hole Spaghettify a Cloud

Two decades of observations show a dusty gas cloud elongating as it approaches our galaxy's supermassive black hole.

Satellite trail passes through galaxy

Astronomy and Society

Satellite Trails Mar Hubble Images

An accounting of satellite streaks across two decades of Hubble Space Telescopes finds their appearance is increasing.

Infrared view of delicate spiral galaxy IC 5332

Galaxies

Generations of Stars Shape Their Galaxies, Webb Images Reveal

James Webb Space Telescope images reveal an intricate network in nearby galaxies, influenced by generations of star formation.

Black field dotted with galaxies

Galaxies

“The Sparkler” Might be Our Milky Way’s Long-Lost Twin

Astronomers are using compact groups of stars to probe the history of a galaxy in the adolescent universe dubbed "The Sparkler."

Intracluster light with Hubble

Galaxies

Hubble and Webb Image Galaxies’ Lost Stars

Deep images of galaxy clusters reveals the light of wandering stars. What set these stars free from their hosts?

Illustration of a planet and its star on a black background. The planet is large, in the foreground at the centre, and the star is smaller, in the background and also at the centre. The planet is rocky. The top quarter of the planet (the side facing the star) is lit, while the rest is in shadow. The star is bright yellowish-white, with no clear features.

Exoplanets

Webb Telescope Confirms Earth-size Exoplanet, Tries to Sniff Its Air

The James Webb Space Telescope has confirmed its first exoplanet, a rocky Earth-size planet, and attempted to take the measure of its atmosphere.

Local Bubble magnetic field placed on a backdrop of the Milky Way

Milky Way

A 3D Magnetic Map of the Local Bubble

Astronomers have mapped the magnetic field along the "bubble" of gas 1,000 light-years wide around the Sun.

Galaxies

The James Webb Space Telescope Is Finding Too Many Early Galaxies

Images and spectra from the James Webb Space Telescope suggest that the first galaxies in the universe are too many or too bright compared to what astronomers expected.

Pillars of Creation at infrared wavelengths

Astronomy & Observing News

The Top 10 Astronomy News Stories of 2022

The James Webb Space Telescope leads our list of the top news stories of the year. See what else made the Top 10!

Cosmic Cliffs close-ups

Stellar Science

Deep Dive Off the Cosmic Cliffs

The James Webb Space Telescope's early-release image of the Cosmic Cliffs is revealing growth spurts in young stars.

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