NIRSpec

New observations by the Webb Space Telescope have reignited the debate about possible life on K2-18b, a potentially habitable exoplanet 124 light-years away. The post Life on K2-18b? Exciting new results met with skepticism first appeared on EarthSky.

NASA's James Webb Space Telescope provided a closer look at the aftermath of a star that wreaked violence on its planet

For the 1st time, the Webb space telescope has revealed auroras on Neptune. See images from Hubble and Webb and read more about it here. The post See auroras on Neptune for the first time! first appeared on EarthSky.

SIMP 0136 shows just how complex our universe really is.

Centaurs are former trans-Neptunian objects that have been moved inside Neptune's orbit by subtle gravitational influences of the planets in the last few million years, and may eventually become short-period comets.

A tidally locked gas giant experiences eternal sunshine on one side, and eternal darkness on the other.

So, you want to find the most distant objects that are out there in the Universe? So do astronomers and astrophysicists of all varieties. Only by looking to greater and greater distances —…

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have spotted unexpected small-scale intensity features such as arcs, bands and spots in Jupiter's low-latitude ionosphere in the region above the Great Red Spot.

For the first time, scientists have discovered the most distant merging quasars yet - at the Cosmic Dawn - some 900 million years after the Big Bang. The post 1st pair of merging quasars seen at Cosmic Dawn first appeared on EarthSky.

5 big lessons from JWST's new record-setting galaxy. A new all-time record! JWST's discovery of JADES-GS-z14–0 pushes the earliest galaxy ever seen to just 290 million years after the Big….

The enigmatic galaxy GN-z11 is one of the youngest ever observed. Delivering on its promise to transform our understanding of the early universe, the James Webb Space Telescope is probing galaxies near the dawn of time. One of these is the exceptionally luminous galaxy GN-z11, which existed w

GN-z11 is an exceptionally luminous galaxy that existed when our Universe was only 420 million years old, making it one of the earliest and most distant ever observed.

Using the James Webb Space Telescope, astronomers spotted a neutron star that evaded detection for 37 years. It lives in Supernova 1987A, the aftermath of a ...

Astronomers have discovered that the supermassive black holes in the centers of early galaxies are much more massive than expected. These surprisingly hefty black holes offer new insights into the origins of all supermassive black holes, as well as the earliest stages of their host galaxy's lives.

It's not just comets that have extremely long tails.

NASA's Webb space telescope has found a tiny brown dwarf that is the smallest free-floating brown dwarf ever seen. Scientists aren't quite sure how it formed. The post Tiny brown dwarf is smallest found so far first appeared on EarthSky.

The James Webb Space Telescope has observed record-breaking free-floating "failed star" and two other brown dwarfs. The discovery could help scientists...

We see these galaxies as they were over 13.45 billion years ago, just between 330 and 350 million years after the Big Bang.

The second- and fourth-most distant galaxies ever observed have been discovered in a region of space known as Pandora's Cluster, or Abell 2744, using data from NASA's James Webb Space Telescope (JWST).

While the ultraviolet aurora of Uranus has been observed since 1986, no confirmation of the infrared aurora had been observed until now.