This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

Take a 3D tour of James Webb Space Telescope's view of the 'Cosmic Cliffs' of the Gum 31 nebula (part of the Carina Nebula Complex). Credit: Producer: Greg Bacon & Frank Summers (STScI), NASA’s ...

Gerardo N. Rigiroli from Buenos Aires, Argentina The nebula NGC 3503 in Carina is a stellar nursery that glows brightly at the center of this image, surrounded by ghostly tendrils of gas and dust. At ...

PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

Test your knowledge of the James Webb Space Telescope with our quiz! Discover facts about its mission, instruments, and ...

The new moon occurs on June 25. A day later, Mercury reaches its highest point in the evening sky, and on June 27, the young moon will make a close pass to the planet.

To make a truly realistic fake picture of a galaxy, you can model exactly how light particles travel through the atmosphere and telescope to reach its sensor.

Today in the history of astronomy, satellites Vela 3 and 4 make the first detection of gamma-ray bursts.

Back to Article List June 30, 1908: The Tunguska impact Today in the history of astronomy, an asteroid flattens 830 square miles of Siberian forest.

The pope spoke to students gathered as part of a monthlong astronomy and astrophysics summer school program hosted by the Vatican Observatory.

Research Astronomy & Astrophysics The fundamental building blocks of life—carbon, oxygen, nitrogen, and other essential elements—are synthesized in massive stars and ejected into the galaxy when they ...

A powerful new telescope will usher in a new era of cosmic discovery, but in a political climate vastly different from when it was named for a once overlooked female astronomer.