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Potentially Hazardous Asteroid (PHA)

NASA’s Planetary Radar Tracks Two Large Asteroid Close Approaches
4 min read

The Deep Space Network’s Goldstone planetary radar had a busy few days observing asteroids 2024 MK and 2011 UL21 as…

Article
NASA Asteroid Experts Create Hypothetical Impact Scenario for Exercise
5 min read

The fifth Planetary Defense Interagency Tabletop Exercise focused on an asteroid impact scenario designed by NASA JPL’s Center for Near…

Article
NASA’s Planetary Radar Images Slowly Spinning Asteroid
4 min read

During the close approach of 2008 OS7 with Earth on Feb. 2, the agency’s Deep Space Network planetary radar gathered…

Article
OSIRIS-APEX
1 min read

OSIRIS-APEX, formerly OSIRIS-REx, will study the physical changes to asteroid Apophis after the asteroid’s rare close encounter with Earth in…

Mission
OSIRIS-REx
2 min read

OSIRIS-REx, the first U.S. mission to collect an asteroid sample in 2020, delivered the sample to Earth on Sept. 24,…

Mission
OSIRIS-REx Resources
1 min read

Explore this page for a curated collection of resources for NASA's OSIRIS-REx mission.

Topic
NEO Surveyor
2 min read

NEO Surveyor is a new infrared space telescope that will expand NASA's ability to find potentially hazardous asteroids and comets.

Mission
WISE/NEOWISE
5 min read

What is WISE/NEOWISE? NASA’s WISE (Wide-field Infrared Survey Explorer) spacecraft was an infrared-wavelength astronomical space telescope active from December 2009…

Mission