NASA is closely monitoring a building-sized asteroid as it makes its closest approach to Earth today, among a group of five ...

Three Tucson scientists are featured in "Planetary Defenders," a new NASA documentary that premieres Wednesday about the ...

NASA has recently identified an unidentified object orbiting the Sun, sparking intrigue and speculation within the scientific community. This enigmatic body exhibits unusual characteristics that ...

NASA's Lucy spacecraft is six days and less than 50 million miles (80 million km) away from its second close encounter with ...

Stargazers can see 10-20 Lyrid meteors per hour during its peak. This meteor shower also occasionally produces fireballs.

The Lucy spacecraft is heading for another encounter with a main belt asteroid, NASA said on Tuesday. The probe will fly by Donaldjohanson next week as a "dress rehearsal" before the start of its main ...

If future Mars colonizers want to survive without pressure suits, they’ll need to generate a denser atmosphere. One way to ...

Dr Kelly Fast is the space agency’s acting NASA Planetary Defense officer and will explain the technologies being created to ...

Shober currently receives funding from the NASA Postdoctoral Program. Much of what scientists know about the early solar system comes ... mission ventured to the asteroid Bennu to retrieve an ...

A planetary scientist explains new research explaining the differing compositions between space rocks that hit Earth and are brought back.

Only 30%-50% of the remaining objects survive the atmospheric passage and become meteorites. The debris pieces whose orbits bring them closer to the Sun tend to be significantly more durable, making ...

The Southwest Research Institute-led Lucy mission is preparing to survey the next target in its epic 4-billion-mile, 12-year, 11-asteroid tour. On April 20, 2025, NASA’s Lucy spacecraft will fly past ...