Seventeen years ago, astronomers witnessed a supernova go off 40 million light-years away in the galaxy called NGC 7424, located in the southern constellation Grus, the Crane. Now, in the fading afterglow of that explosion, NASA's Hubble Space Telescope has captured the first image of a surviving companion to a supernova. This picture is the most compelling evidence that some supernovas originate in double-star systems.
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NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its fourth year of survey data. Since the mission was restarted in December 2013, after a period of hibernation, the asteroid- and comet-hunter has completely scanned the skies nearly eight times and has observed and characterized 29,375 objects in four years of operations. This total includes 788 near-Earth objects and 136 comets since the mission restart.
This image of Jupiter’s iconic Great Red Spot and surrounding turbulent zones was captured by NASA’s Juno spacecraft.
This colorful image, taken by NASA’s Hubble Space Telescope, celebrates the Earth-orbiting observatory’s 28th anniversary of viewing the heavens, giving us a window seat to the universe’s extraordinary tapestry of stellar birth and destruction.
This Earth Day, NASA invites you to create your own shareable views of our home planet, help combat mosquito-transmitted diseases, and watch our fleet of Earth-observing spacecraft as they circle the globe.
These NASA Hubble Space Telescope images compare two diverse views of the roiling heart of a vast stellar nursery, known as the Lagoon Nebula. The images, one taken in visible and the other in infrared light, celebrate Hubble’s 28th anniversary in space.
Launch teams are standing down today to conduct additional Guidance Navigation and Control analysis, and teams are now working towards a targeted launch of the Transiting Exoplanet Survey Satellite (TESS) on Wednesday, April 18.
The worlds orbiting other stars are called “exoplanets,” and they come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about as big around as Earth or Mars. They can be hot enough to boil metal or locked in deep freeze. They can orbit their stars so tightly that a “year” lasts only a few days; they can orbit two suns at once. Some exoplanets are sunless rogues, wandering through the galaxy in permanent darkness.
West Nile Virus (WNV) is commonly spread to humans by the bites of Culex sp. mosquitoes. As South Dakota is the U.S. hotspot for WNV, local scientists and public health officials developed a way to use environmental data from NASA satellites to forecast disease risk. These data help inform scientists and community practitioners working in disease prevention and control to educate the public and better manage vector control efforts.
Large accumulations of cyanobacteria (blue-green algae) are toxic and harmful to people and animals. NASA Aqua and Terra satellite data help detect, forecast, and target responses to Harmful Algal Blooms in the Great Lakes and Florida. This information can aid in risk assessment and decision making to safeguard public health for all citizens.