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

NASA is tracking an object that is entering the solar system at approximately 245,000 km/h. This interstellar visitor is 3I/ATLAS, also known as “Comet C/2025 N1 and initially ...

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 ...

U.S. Sen. Maria Cantwell released a report that quotes NASA whistleblowers as saying they've "seen safety impacts" due to budget cuts.

NASA’s IMAP mission will explore the heliosphere and study how it shields Earth from cosmic radiation and space weather.

Now, without much fanfare, NASA has restored the mission, choosing billionaire Jeff Bezos' Blue Origin to deliver the rover to the lunar south pole in late 2027. The mission is part of the Artemis ...

The NASA/ESA/CSA James Webb Space Telescope has provided the first direct measurements of the chemical and physical properties of a potential moon-forming disk encircling a large exoplanet. The carbon ...

A comet speeding towards the inner solar system, where Earth is located, is significantly bigger than initially thought, astronomers said. The comet named 3I/ATLAS likely weighs more than 33 billion ...

Scientists solve a 15-year Mars mystery, confirming ferric hydroxysulfate formed by volcanic and hydrothermal heating across key Martian sites.

Planetary scientist Scott Bolton describes his working life at the helm of NASA’s Jupiter-exploring Juno mission ...

The Back Story A looming government shutdown could force NASA to furlough staff during critical 3I/ATLAS tracking. Harvard astrophysicist Avi Loeb warns that the anomalous interstellar object deserves ...