W. M. Keck Observatory’s laser guide star adaptive optics (LGS AO) system uses a laser to create an artificial star to measure for atmospheric distortions. This results in sharp, high-resolution ...

The missions' first four delays were to allow for additional time for checkouts and processing on the Falcon 9 rocket they'll ...

The James Webb Space Telescope is helping scientists study a strange mass about 20 light-years from Earth. Traveling ...

More than 38,000 asteroids are known to be in Earth’s vicinity, including 973 “planet killers” of more than half a mile in diameter. Most pose no risk. But NASA estimates that only about 43% of nearby ...

Although YR4 no longer poses a threat, it’s increasingly clear that Earth inhabits a dangerous neighborhood. Keeping out of ...

For a brief window, Asteroid 2024 YR4 looked like a planetary hazard in the making. At up to 90 meters (295 feet) in diameter, it was described as a potential ...

For a brief window, Asteroid 2024 YR4 looked like a planetary hazard in the making. At up to 90 meters (295 feet) in diameter ...

Recent technological advancements have made it easier than ever to explore the cosmos. One of the most exciting innovations ...

A groundbreaking collaboration between, Arizona State University, and Lawrence Livermore National Laboratory is unlocking the ...

NASA’s James Webb Space Telescope is providing the best look yet at the chaotic events unfolding around the supermassive black hole at the center of our Milky Way galaxy, observing a steady flickering ...

NASA’s Hubble Space Telescope has identified 36 dwarf galaxies orbiting the Andromeda Galaxy. The images were compiled over ...