When NASA’s Hubble Space Telescope captured a sharp image of the interstellar object 3I/ATLAS on July 21, 2025, it handed ...

A mysterious object has caused a long-lasting and extreme dimming of a distant star, but is this object a 'failed star' brown dwarf, or an exceptionally massive super-Jupiter exoplanet?

Add Yahoo as a preferred source to see more of our stories on Google. Interstellar object 3I/ATLAS is on the opposite side of the sun from Earth - but several spacecraft are in the perfect position to ...

NASA's Hubble Space Telescope has gotten an up-close look at a headline-grabbing object known as 3I/ATLAS that has recently wandered into Earth's cosmic neighborhood from far away. The image, which ...

A niche corner of the commercial space sector is attracting attention from United States national security planners, not because of its economic promise, but because of the technical problems it is ...

Discover how high-speed wavefront sensing enhances space situational awareness by overcoming atmospheric distortion.

Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From ...

Interest in the moon has been high—just in the past two years there have been 12 attempts to send missions to the moon, nearly half of which private companies undertook. With so much activity, it's ...