NASA is tracking an object that is entering the solar system at approximately 245,000 km/h. This interstellar visitor is ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system.

In July, NASA reported its ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Chile identified a comet ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

A NASA mission, IMAP, and two more spacecraft that will study space weather are traveling through space atop a single SpaceX ...

NASA Hubble Space Telescope, New Horizons and Lucy missions are examples of the missions that are leading to discoveries about the "fossils of our solar system," according to NASA's Goddard Space ...

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

IMAP (short for "Interstellar Mapping and Acceleration Probe") is the primary payload on today's flight. The roughly $600 ...

The spacecraft will study the solar system's edge, magnetic fields in interplanetary space, and remnants of exploded stars.

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are ...

"If there is a space race, China's already winning it, and could win it dramatically in the next few decades." ...