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NASA/JPL

This illustration depicts asteroid Phaethon being heated by the Sun. The asteroid’s surface gets so hot that sodium inside Phaethon’s rock likely vaporizes and vents into space, causing it to brighten like a comet and form a tail.

Weird asteroid gets weirder

Categories Space

Members of NASA’s OSIRIS-REx curation team work with a glove box at the agency's Johnson Space Center in Houston. The curation team will be among the first to see and handle the sample OSIRIS-REx is returning from asteroid Bennu. They are also responsible for storing and distributing the sample to science team members around the world. Most of the sample will be stored for future generations.

NASA prepares for historic asteroid sample delivery

Categories Space

Satellite data from 30 years of observations is helping researchers tease apart natural and human-caused drivers of sea level rise. The information will help planners in regions like New Orleans, Louisiana, along the U.S. Gulf Coast to prepare for the future. Credit: NASA

NASA Uses 30-Year Satellite Record to Track and Project Rising Seas

Categories Earth, Energy & Environment, Space

NASA’s Curiosity Mars rover captured these “sun rays” shining through clouds at sunset on Feb. 2, 2023, the 3,730th Martian day, or sol, of the mission. It was the first time that sun rays, also known as crepuscular rays, have been viewed so clearly on Mars. Credit: NASA/JPL-Caltech/MSSS

NASA’s Curiosity Views First ‘Sun Rays’ on Mars

Categories Physics & Mathematics, Space

This artist's illustration shows how the gravity of a foreground white dwarf star warps space and bends the light of a distant star behind it. Astronomers using NASA's Hubble Space Telescope have for the first time directly measured the mass of a single, isolated white dwarf (the surviving core of a burned-out Sun-like star) – due to this optical trick of nature. The greater the temporary, infinitesimal deflection of the background star's image, the more massive the foreground star is. (This deviation is so small that it is equivalent to observing an ant crawl across the surface of a quarter from 1,500 miles away.) Researchers found that the dwarf is 56 percent the mass of our Sun. This effect, called gravitational lensing was predicted as a consequence of Einstein's theory of general relativity from a century ago. Observations of a solar eclipse in 1919 provided the first experimental proof for general relativity. But Einstein didn't think the same experiment could be done for stars beyond our Sun because of the extraordinary precision required.

For the first time Hubble directly measures mass of a lone white dwarf

Categories Physics & Mathematics, Space

Members of the public can help astronomers observe and study the night sky through NASA’s Universe of Learning Exoplanet Watch program. Credit: NASA/Bill Dunford

NASA Wants You to Help Study Planets Around Other Stars

Categories Space

NASA to bounce radio signals off asteroid

Categories Space, Technology

This illustration depicts NASA's Psyche spacecraft. Set to launch in 2023, the Psyche mission will explore a metal-rich asteroid of the same name that lies in the main asteroid belt between Mars and Jupiter. Credits: NASA/JPL-Caltech/ASU

NASA Responds to Critical Review of Psyche Program

Categories Space

This map shows the size and shape of the ozone hole over the South Pole on Oct. 5, 2022, when it reached its single-day maximum extent for the year.

Ozone hole continues shrinking in 2022, NASA and NOAA scientists say

Categories Earth, Energy & Environment, Space

Photo of desert sky

NASA UFO/UAP Study: Frequently Asked Questions

Categories Space

In this mosaic image stretching 340 light-years across, Webb’s Near-Infrared Camera (NIRCam) displays the Tarantula Nebula star-forming region in a new light, including tens of thousands of never-before-seen young stars that were previously shrouded in cosmic dust. The most active region appears to sparkle with massive young stars, appearing pale blue.

A cosmic tarantula, caught by NASA’s Webb

Categories Space

A rocket body impacted the Moon on March 4, 2022, near Hertzsprung crater, creating a double crater roughly 28 meters wide in the longest dimension. LROC NAC M1407760984R; image enlarged 3x.

NASA’s Lunar Reconnaissance Orbiter spots rocket impact site on moon

Categories Space

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