The spacecraft, SPHEREx and PUNCH, had been expected to launch on a SpaceX rocket on Saturday. Two NASA missions will have to ...

Designed as a medium-class mission within NASA’s Explorers program, SPHEREx was selected by NASA for funding and development ...

The Voyager probes are each turning off an instrument to avoid ending their 47-year-long missions later this year.

Richard Binzel, a professor of planetary sciences at MIT who is part of a team working on a NASA mission to Pluto, poses with a globe of the solar system. (Suzanne Kreiter/The Boston Globe via Getty ...

NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at the closest approach of that distant world in July 2015. Sailing onward, the probe carried out ...

A UK startup has unveiled a new fusion-powered space rocket concept called Sunbird for interplanetary travel to Mars — and beyond.

The 95 years since then have been ones of changing fortune for little Pluto. For decades after the first eight planets were barnstormed, orbited, and landed upon by spacecraft from Earth ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. Clyde Tombaugh didn't set out to discover Pluto when he sent his ...

the Principal Investigator of the New Horizons spacecraft mission that conducted a flyby of the Pluto system in 2015. Stern is an outspoken critic of the “demotion” and also a multifaceted ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. This high-resolution image captured by NASA's New Horizons spacecraft combines blue, red and ...