This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

NASA's James Webb Telescope has been investigating the first-ever case of a star caught swallowing a planet—and, in classic ...

In a preliminary budget proposal, the agency’s science programs would see a 50 percent reduction, with a 20 percent cut to ...

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

Scientists are increasingly concerned about the future of Earth science under President Donald Trump, as three key NASA ...

The NASA/ESA Solar Orbiter recently recorded the highest-ever concentration of a rare helium isotope (3He) emitted from the Sun. A Southwest Research Institute-led team of scientists sought the source ...

NASA’s Parker Solar Probe has completed its second close pass near the Sun, moving at a record speed of 692,000 km/h. The spacecraft collected valuable data from the Sun’s corona to help scientists ...

The video was taken by Metis on October 12, 2022. Metis is the only instrument capable of seeing such subtle features of the ...

Astronomers have gotten a glimpse of the "city-killer" asteroid before it disappears until 2028, according to NASA.

It's been just about one year since the total solar eclipse dazzled the skies in Lower Hudson Valley April 8, 2024.

Has the sun already reached solar maximum? New data suggests Solar Cycle 25 may have peaked earlier than expected. Find out ...