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A spiral galaxy with three prominent arms wrapping around it. The galaxy holds plenty of extra gas and dark dust between the arms. There are shining blue points throughout the arms and some patches of gas out beyond the galaxy’s edge, where stars are forming. The center of the galaxy also shines brightly. It is on a dark background where some small orange dots mark distant galaxies.

Hubble Images a Classic Spiral 

2 min read

This NASA/ESA Hubble Space Telescope image treats viewers to a wonderfully detailed snapshot of the spiral galaxy NGC 3430 that lies 100 million light-years from Earth in the constellation Leo Minor. Several other galaxies, located relatively nearby to this one,…

Article13 hours ago
Illustration of a particle jet emerging from a dying star

NASA’s Fermi Finds New Feature in Brightest Gamma-Ray Burst Yet Seen

4 min read

In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA’s Fermi Gamma-ray Space Telescope reveals a feature never seen before. “A…

Article1 day ago

How NASA’s Roman Space Telescope Will Illuminate Cosmic Dawn

6 min read

Today, enormous stretches of space are crystal clear, but that wasn’t always the case. During its infancy, the universe was filled with a “fog” that made it opaque, cloaking the first stars and galaxies. NASA’s upcoming Nancy Grace Roman Space…

Article1 day ago
This image shows the exoplanet Epsilon Indi Ab. The image is mostly black, with blue scale-like features apparent in the central region of the image. At the center of the image, there is a black circle, and in the center, a symbol representing a star. This black circle blocks the light from the host star. To the lower left of the circle is a fuzzy bright orange circle, which is the exoplanet.

NASA’s Webb Images Cold Exoplanet 12 Light-Years Away

6 min read

An international team of astronomers using NASA’s James Webb Space Telescope has directly imaged an exoplanet roughly 12 light-years from Earth. The planet, Epsilon Indi Ab, is one of the coldest exoplanets observed to date. The planet is several times…

Article2 days ago

25 Images to Celebrate NASA’s Chandra 25th Anniversary

4 min read

To celebrate the 25th anniversary of its launch, NASA’s Chandra X-ray Observatory is releasing 25 never-before-seen views of a wide range of cosmic objects. These images, which all include data from Chandra, demonstrate how X-ray astronomy explores all corners of the universe.…

Article4 days ago
A dwarf irregular galaxy. It appears as a cloud of bluish gas, filled with point-like stars that spread beyond the edge of the gas. A few glowing red clouds sit near its center. Many other objects are visible around it: distant galaxies in the background, four-pointed stars in the foreground, and star clusters that are part of the galaxy appear as bright spots surrounded by more tiny stars.

Hubble Studies a Potential Galactic Merger

3 min read

This NASA/ESA Hubble Space Telescope image features the dwarf irregular galaxy NGC 5238, located 14.5 million light-years from Earth in the constellation Canes Venatici. Its unexciting, blob-like appearance seems to resemble an oversized star cluster more than a classic image…

Article1 week ago
Fountains of ice erupt from the surface of Enceladus. The small moon is mostly in shadow, which makes the geysers illuminated by sunlight stand out.

NASA: Life Signs Could Survive Near Surfaces of Enceladus and Europa

5 min read

Europa, a moon of Jupiter, and Enceladus, a moon of Saturn, have evidence of oceans beneath their ice crusts. A NASA experiment suggests that if these oceans support life, signatures of that life in the form of organic molecules (e.g.…

Article1 week ago

Discovery Alert: With Six New Worlds, 5,500 Discovery Milestone Passed!

4 min read

On Aug. 24, 2023, more than three decades after the first confirmation of planets beyond our own solar system, scientists announced the discovery of six new exoplanets, stretching that number to 5,502. From zero exoplanet confirmations to over 5,500 in…

Article1 week ago
Illustration of a planet, zoomed in on the planet’s dayside/nightside boundary. The planet encompasses takes up the full image. At the bottom left, the image is dark, depicting the nightside covering the planet in a dark shadow. In the right side of the image, the planet has a fuzzy orange-pink atmosphere with hints of latitudinal wispy cloud bands. The right upper corner is bright, where the star (not illustrated) shines.

NASA’s Webb Investigates Eternal Sunrises, Sunsets on Distant World

6 min read

Near-infrared spectral analysis of terminator confirms differences in morning and evening atmosphere Researchers using NASA’s James Webb Space Telescope have finally confirmed what models have previously predicted: An exoplanet has differences between its eternal morning and eternal evening atmosphere. WASP-39…

Article2 weeks ago
Arp 142, two interacting galaxies, observed in near- and mid-infrared light. At left is NGC 2937, nicknamed the Egg. Its center is the brighter and whiter. There are six diffraction spikes atop its gauzy blue layers. At right is NGC 2936, nicknamed the Penguin. Its beak-like region points toward and above the Egg. Where the eye would be is a small, opaque yellow spiral. The Penguin’s distorted arms form the bird’s beak, back, and tail. The tail is wide and layered, like a beta fish’s tail. A semi-transparent blue hue traces the Penguin and extends from the galaxy, creating an upside-down U over top of both galaxies. At top right is another galaxy seen from the side, pointing roughly at a 45-degree angle. It is largely light blue. Its length appears approximately as long as the Egg’s height. One foreground star with large, bright blue diffraction spikes appears over top of the galaxy and another near it. The entire black background is filled with tiny, extremely distant galaxies.

Vivid Portrait of Interacting Galaxies Marks Webb’s Second Anniversary

6 min read

Two for two! A duo of interacting galaxies commemorates the second science anniversary of NASA’s James Webb Space Telescope, which takes constant observations, including images and highly detailed data known as spectra. Its operations have led to a “parade” of…

Article2 weeks ago