Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth this week, safely passing at 167m miles. The UN & NASA are ...

All year long, these moments captivated the public, demonstrated dangerous trends, and pushed research and innovation forward ...

The interstellar object 3I/ATLAS will reach its closest point to Earth this Friday, December 19, 2025. Ephemerides from the ...

Then, on November 25, teams at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, joined the inner and outer portions ...

Jared Isaacman, the billionaire nominated twice to lead the agency, may draw some lessons from the tenure of another NASA ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. On ...

Oceans hiding within the crusts of distant moons are tantalizing targets for scientists looking for life beyond Earth ...

Astronomers traced a mysterious 'scar' of ionized gas around the solar system to two stars that had a close flyby with our sun millions of years ago. Earth may have a moon today because a nearby ...

Two rare cosmic collisions around the young star Fomalhaut were caught by space telescopes, offering new clues about how planets form.