Voyager 1’s journey through interstellar space has revealed how strange the space beyond the planets really is. Its ...

Rogue planets sound like rare travelers among the stars, freed from the gravitational constraints of a host system, left to forever wander the interstellar void. But modern models suggest these free ...

Voyager 2 runs on radioisotope thermoelectric generators, which turn heat from decaying plutonium into electricity. That heat ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should we look at first?

Add Yahoo as a preferred source to see more of our stories on Google. Composite image from the Galactic Center. Green and yellow: 8 µm and 24 µm emission observed with Spitzer (Churchwell et al. 2009; ...

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

Add Yahoo as a preferred source to see more of our stories on Google. The Hubble Space Telescope image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from ...

Interstellar comet 3I/ATLAS, which passed through the solar system in 2025, seems to have come from a chemically primitive region of the early Milky Way, according to James Webb Space Telescope ...

Detection of erythrulose shows compounds that are key to life can form in expanse between stars ...

As part of the Decadal Survey on Astronomy and Astrophysics (Astro2020), the Panel on the Interstellar Medium and Star and Planet Formation will identify and articulate the scientific themes that will ...