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NASA Study Helps Explain Limit-Breaking Ultra-Luminous X-Ray Sources | NASA Awards Innovative Concept Studies for Science... 

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	Technology NASA Study Helps Explain Limit-Breaking Ultra-Luminous X-Ray Sources These objects are more than 100 times brighter than they should be. Observations by the agency’s NuSTAR X-ray telescope support a possible solution to this puzzle. Read More

Technology NASA Awards Innovative Concept Studies for Science, Exploration Recipients include a concept from NASA’s JPL that would use next-generation radar technology to improve how we study Earth and other worlds. Read More

	STARS AND GALAXIES What's Up - April 2023 What are some skywatching highlights in April 2023? Mercury rising, this month's Moon and planet pairings, and the Lyrid meteor shower. Watch Now