Over 100 participants from 18 countries – including NASA scientists and the agency’s NEOWISE mission – took part in the international exercise.
PASADENA, Calif. (NASA PR) — Watching the skies for large asteroids that could pose a hazard to the Earth is a global endeavor. So, to test their operational readiness, the international planetary defense community will sometimes use a real asteroid’s close approach as a mock encounter with a “new” potentially hazardous asteroid. The lessons learned could limit, or even prevent, global devastation should the scenario play out for real in the future.
By Francis Reddy NASA’s Goddard Space Flight Center,
GREENBELT, Md. — Using observations from NASA’s Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a trio of hot worlds larger than Earth orbiting a much younger version of our Sun called TOI 451. The system resides in the recently discovered Pisces-Eridanus stream, a collection of stars less than 3% the age of our solar system that stretches across one-third of the sky.
GREENBELT, Md. (NASA PR) — We’ve never met some of the Sun’s closest neighbors until now. In a new study, astronomers report the discovery of 95 objects known as brown dwarfs, many within a few dozen light-years of the Sun.
They’re well outside the solar system, so don’t experience heat from the Sun, but still inhabit a region astronomers consider our cosmic neighborhood. This collection represents some of the coldest known examples of these objects, which are between the sizes of planets and stars.
The International Space Station, with a crew of five onboard, is seen in this 10 second exposure above comet NEOWISE, Saturday, July 18, 2020 from Keys Gap, W.Va. The comet was discovered by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer, or NEOWISE, on March 27.
Since then, the comet — called comet C/2020 F3 NEOWISE and nicknamed comet NEOWISE — has been spotted by several NASA spacecraft, including Parker Solar Probe, NASA’s Solar and Terrestrial Relations Observatory, the ESA/NASA Solar and Heliospheric Observatory, and astronauts aboard the International Space Station.
Onboard the International Space Station are Expedition 63 NASA astronauts Chris Cassidy, Douglas Hurley, Robert Behnken, and Roscosmos cosmonauts Anatoly Ivanishin and Ivan Vagner.
PASADENA, Calif. (NASA PR) — Observers in the Northern Hemisphere are hoping to catch a glimpse of Comet NEOWISE as it zips through the inner solar system before it speeds away into the depths of space.
Discovered on March 27, 2020 by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission, Comet NEOWISE is putting on a dazzling display for skywatchers before it disappears, not to be seen again for another 6,800 years.
by Sarah Frazier NASA’s Goddard Space Flight Center
GREENBELT, Md. — NASA’s Parker Solar Probe was at the right place at the right time to capture a unique view of comet NEOWISE on July 5, 2020. Parker Solar Probe’s position in space gave the spacecraft an unmatched view of the comet’s twin tails when it was particularly active just after its closest approach to the Sun, called perihelion.
PASADENA, Calif. (NASA PR) — A comet visiting from the most distant parts of our solar system is putting on a spectacular nighttime display. Named Comet C/2020 F3 NEOWISE, the comet made its once-in-our-lifetimes close approach to the Sun on July 3, 2020, and will cross outside Earth’s orbit on its way back to the outer parts of the solar system by mid-August.
TUCSON, Ariz. (University of Arizona PR) — The University of Arizona is spearheading work that would begin efforts to construct a space-based infrared telescope that could provide the capabilities NASA needs to search for asteroids and comets that pose impact hazards to Earth, called near-Earth objects, or NEOs.
NASA announced on Monday that it is planning to spend $500 to $600 million to develop the NEO Surveillance Mission that would begin hunting for large asteroids and comets that could strike Earth.
Thomas Zurbuchen, associate administrator for the Science Mission Directorate, made the announcement during a meeting of the Planetary Science Advisory Committee held in Washington, D.C. NASA’s Jet Propulsion Laboratory (JPL) would lead the project, which would launch around 2025.
PASADENA, Calif. (NASA/JPL-Caltech PR) — NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission released its fifth year of survey data on April 11, 2019. The five years of NEOWISE data have significantly advanced scientists’ knowledge of asteroids and comets in the solar system, as well as the stars and galaxies beyond.
The data from all five years of the survey are available at:
PASADENA, Calif. (NASA PR) — Nearly all asteroids are so far away and so small that the astronomical community only knows them as moving points of light. The rare exceptions are asteroids that have been visited by spacecraft, a small number of large asteroids resolved by NASA’s Hubble Space Telescope or large ground-based telescopes, or those that have come close enough for radar imaging.
PASADENA, Calif. (NASA PR) — 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.
PASADENA, Calif. (NASA PR) — NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its third year of survey data, with the spacecraft discovering 97 previously unknown celestial objects in the last year. Of those, 28 were near-Earth objects, 64 were main belt asteroids and five were comets.
PASADENA, Calif. (NASA PR) — NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) mission has released its second year of survey data. The spacecraft has now characterized a total of 439 NEOs since the mission was re-started in December 2013. Of these, 72 were new discoveries.
WASHINGTON, D.C. (NASA PR) — Since it began operations in December 2009, NASA’s NEOWISE mission has observed 158,000 asteroids and discovered more than 35,000.
The NEOWISE mission hunts for near-Earth objects (NEOs) using the Wide-field Infrared Survey Explorer (WISE) spacecraft. Funded by NASA’s NEO Observations Program, the NEOWISE mission uses images taken by the spacecraft to look for asteroids and comets, providing a rich source of measurements of solar system objects at infrared wavelengths. These measurements include wavelengths that are difficult or impossible to detect directly from the ground.