The Parker Solar Probe flew within 3.8 million miles of the Sun's surface, the closest any spacecraft has ever gone.

One of the many advantages of being in space is having a front-row seat to the most anticipated cosmic events.

NASA has arrived at two ways of returning samples collected on Mars to Earth. Now, the agency will test the options to see if ...

The spacecraft built and operated by Texas-based Firefly Aerospace launched in the early Monday hours from Florida aboard a SpaceX rocket.

President-elect Donald Trump's pick to lead NASA has given over $300,000 to Democratic campaigns as his companies promoted ...

Two spacewalks scheduled for this January will see astronauts updating station hardware and searching for microorganisms on ...

A SpaceX mission set to lift off overnight marks a first for Firefly Aerospace under NASA's plans to build up American ...

NASA announced Tuesday that it is exploring two options to move forward with its mission to return samples from Mars at a ...

NASA is pitching a cheaper and quicker way of getting rocks and soil back from Mars. Administrator Bill Nelson presented two ...

NASA's James Webb Space Telescope ... "We now have the capability to resolve stars that were previously outside of our ...

NASA has unveiled two revamped plans to bring Mars samples to Earth in the 2030s, reducing costs by nearly half from its ...

NASA hopes a revised plan will get Mars samples back to Earth faster and cost less than the agency's original plan.