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 ...

Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than ...

NASA's Hubble Space Telescope captured a bright variable star, V 372 Orionis, and its companion in this festive image in this ...

In a groundbreakingrelease on July 7, 2025, NASA showcased extraordinary images from its Hubble and Webb space telescopes ...

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

Astronomers have studied the globular cluster 47 Tucanae extensively, but still have many questions. It may have an ...

The JWST could see a 25-35% reduction in operations, and some Hubble instruments may have to fend for themselves.

The telescope has the world's largest digital camera, which is the size of a small car, weighs 2,800 kg, and boasts a ...