Saturn is below Venus and very low in the predawn sky. In late April it is five degrees above the horizon. You may need ...

A breathtaking cosmic dance unfolds as the Webb Telescope captures a star's birth, set against a spiral galaxy's mesmerizing ...

Early simulations show that it would take only 10 hours for the forthcoming ELT to find signs of life near Proxima Centauri.

Here's how an innovative flat lens could solve these problems for satellites and space-based telescopes. Understanding ...

One moment occurred in 1984 when NASA astronaut Bruce McCandless II became the first human to spacewalk or float free from ...

Energetic particles (often from the sun, but sometimes from a moon’s volcanic eruptions ... But all follow-up observations — even with the Hubble Space Telescope — failed to spy telltale ...

NGC 2566: The galaxy filling the frame in this James Webb Space Telescope image is NGC 2566, a spiral galaxy in the ...

A light-year is equivalent to almost 6 trillion miles. Launched in 2021 as the successor to the Hubble Space Telescope, Webb observed the scene in the infrared. NASA said in a statement it was ...

The European Space Agency has released the first batch of large-scale images from the Euclid space telescope, which astronomers have already used to find hundreds of strong gravitational lenses ...

Long-Sought Auroral Glow Finally Emerges Under Webb’s Powerful Gaze Neptune lies in the cold, dark reaches of the outer edges of our solar system, about 3 billion miles from the Sun, at the farthest ...