Interstellar Technologies ZERO rocket engine test-fired at Hokkaido Spaceport in Taiki, Hokkaido. It is fueled by liquid ...

Although the natural origin of the interstellar comet 3I/ATLAS is generally accepted, the SETI Institute team nevertheless ...

The James Webb Space Telescope observed a large amount of methane around 3I/ATLAS, revealing just how different it is from ...

There is something almost offensive about a sky so full of stars and so empty of company. That is what gives Richard ...

A new study suggests laser-driven interstellar lightsails may face a hidden efficiency problem as the very light pushing them starts behaving less helpfully.

Scientists failed to find radio signals emanating from interstellar comet 3I/ATLAS, further bolstering its status as a ...

NASA spacecraft observed the celestial iceball as it swung past Mars last October, venturing within 19 million miles ...

Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope coincidentally spotted this visitor from the stars over a week before it was officially ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...