A face-on spiral galaxy with four spiral arms that curve outward in a counterclockwise direction. The spiral arms are filled with young, blue stars and peppered with purplish star-forming regions that appear as small blobs. The middle of the galaxy is much brighter and more yellowish, and has a distinct narrow linear bar angled from 11 o’clock to 5 o’clock. Dozens of red background galaxies are scattered across the image. The background of space is black.

NASA’s Webb, Hubble Telescopes Affirm Universe’s Expansion Rate, Puzzle Persists

When you are trying to solve one of the biggest conundrums in cosmology, you should triple check your homework. The puzzle, called the "Hubble Tension," is that the current rate of the expansion of the ...
Astronomers Measure Heaviest Black Hole Pair Ever Found

Astronomers Measure Heaviest Black Hole Pair Ever Found

Using archival data from the Gemini North telescope, a team of astronomers have measured the heaviest pair of supermassive black holes ever found. The merging of two supermassive black holes is a phenomenon that has ...
Image is completely filled with a dark red granulation

Unveiling the Mysteries of the Solar Chromosphere with the Daniel K. Inouye Solar Telescope

The second layer of our Sun’s atmosphere, the chromosphere, is sandwiched between the Sun’s visible surface (or photosphere) below, and its outer atmosphere (or corona) above. In this layer, plasma properties such as temperature, pressure, ...
A three-panel image. At left, a mottled light pink oval with a light blue, keyhole-shaped blob in the middle, surrounded by a few stars. At right, two stacked panels show a bright orange ring with an orange dot in the middle.

Webb Finds Evidence for Neutron Star at Heart of Young Supernova Remnant

NASA’s James Webb Space Telescope has found the best evidence yet for emission from a neutron star at the site of a recently observed supernova. The supernova, known as SN 1987A, was a core-collapse supernova, ...
NASA's Hubble Traces 'String of Pearls' Star Clusters in Galaxy Collisions

NASA’s Hubble Traces ‘String of Pearls’ Star Clusters in Galaxy Collisions

Contrary to what you might think, galaxy collisions do not destroy stars. In fact, the rough-and-tumble dynamics trigger new generations of stars, and presumably accompanying planets. Now NASA's Hubble Space Telescope has homed in on ...
NASA's Webb Depicts Staggering Structure in 19 Nearby Spiral Galaxies

NASA’s Webb Depicts Staggering Structure in 19 Nearby Spiral Galaxies

It’s oh-so-easy to be absolutely mesmerized by these spiral galaxies. Follow their clearly defined arms, which are brimming with stars, to their centers, where there may be old star clusters and – sometimes – active ...