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NASA-JAXA’s XRISM Telescope Clocks Hot Wind of Galaxy M82
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An Unusual Turn
Astronomers using NASA’s Hubble Space Telescope have found evidence that a small comet’s rotation not only slowed down but actually reversed direction. This dramatic example shows how volatile activity can influence the spin and physical evolution of small bodies in our solar system. It marks the first time researchers have observed evidence of a comet reversing its spin.
Comet 41P/Tuttle-Giacobini-Kresák about An Unusual Turn
Solar System Exploration
Today
Image Of The Day
NASA’s IXPE Gets Fresh Look at Supernova
NASA’s IXPE observed the outer rim of the supernova remnant highlighted in purple in the inset. Data from IXPE is combined with data from NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton.
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Freedom 250
NASA Celebrates America’s 250th Birthday
Our spirit of adventure and innovation will raise our nation to new heights.
From the earliest days of exploration, to the first steps on the Moon and the missions shaping our future, NASA represents the spirit of discovery that defines our nation. As the United States approaches its semiquincentennial, Freedom 250 highlights how innovation, courage, and scientific leadership have carried America forward — and how NASA continues to expand the frontier for the next generation.
Learn More about NASA Celebrates America’s 250th Birthday
