The Universe

Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
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Spiral Galaxies
The Universe

Hubble Captures a Bright Galactic and Stellar Duo

This image from the NASA/ESA Hubble Space Telescope features NGC 3783, a bright barred spiral galaxy about 130 million light-years from Earth that also lends its name to the eponymous NGC 3783 galaxy group. Like galaxy clusters, galaxy groups are aggregates of gravitationally bound galaxies.
Posted April 19, 2024
Astrophysics
Goddard Space Flight Center
International Space Station (ISS)
ISS Research
NICER (Neutron star Interior Composition Explorer)
The Universe

Astronauts To Patch Up NASA’s NICER Telescope

NASA is planning to repair NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, during a spacewalk later this year. It will be the fourth science observatory in orbit serviced by astronauts.
Posted April 17, 2024
Nancy Grace Roman Space Telescope
Goddard Space Flight Center
Goddard Technology
Missions
Science-enabling Technology
Technology
The Universe

NASA’s Roman Space Telescope’s ‘Eyes’ Pass First Vision Test

Engineers at L3Harris Technologies in Rochester, New York, have combined all 10 mirrors for NASA’s Nancy Grace Roman Space Telescope. Preliminary tests show the newly aligned optics, collectively called the IOA (Imaging Optics Assembly), will direct light into Roman’s science instruments extremely precisely.
Posted April 17, 2024
Astrophysics
Fermi Gamma-Ray Space Telescope
Goddard Space Flight Center
Supernovae
The Universe

NASA’s Fermi Mission Sees No Gamma Rays from Nearby Supernova

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly, NASA’s Fermi Gamma-ray Space Telescope detected none of the high-energy gamma-ray light those particles should produce.
Posted April 16, 2024
Astrophysics Division
Brown Dwarfs
Citizen Science
NEOWISE
Stars
The Universe
WISE (Wide-field Infrared Survey Explorer)

A Solar Neighborhood Census, Thanks to NASA Citizen Science

To take a census of nearby cosmic objects, sending out a survey won’t work. Scientists need to use many telescopes with different specializations to chart what is in the general neighborhood of the Sun. Looking to understand more about our neighbors and how they came to be, scientists collaborate with citizen scientists, volunteers from around […]
Posted April 16, 2024
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
Nebulae
Spiral Galaxies
The Universe

Hubble Spots a Galaxy Hidden in a Dark Cloud

The subject of this image taken with the NASA/ESA Hubble Space Telescope is the spiral galaxy IC 4633, located 100 million light-years away from us in the constellation Apus. IC 4633 is a galaxy rich in star-forming activity and also hosts an active galactic nucleus at its core. From our point of view, the galaxy […]
Posted April 12, 2024
Radioisotope Power Systems (RPS)
Glenn Research Center
NASA Centers & Facilities
NASA STEM Projects
STEM Engagement at NASA
Technology
The Solar System
The Universe

NASA Names Finalists of the Power to Explore Challenge

NASA has selected the nine finalists of the Power to Explore Challenge, a national competition for K-12 students featuring the enabling power of radioisotopes.
Posted April 8, 2024
Astrophysics
Astrophysics Division
Dark Matter
Dark Matter & Dark Energy
E-Books
Hubble Space Telescope
Missions
Science Mission Directorate
The Universe

NASA’s New Hubble E-Book Spotlights Universe’s Best-Kept Dark Secrets

NASA’s Hubble Space Telescope team has released a new downloadable e-book in the Hubble Focus series, called “Hubble Focus: The Dark Universe.” This e-book highlights the mission’s recent discoveries about two mysterious components of our universe, known as dark energy — an unexplained cosmic pressure that’s speeding up the universe’s expansion — a
Posted April 6, 2024
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
The Universe

Hubble Peers at Pair of Closely Interacting Galaxies

This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two galaxies interacting due to gravity: NGC 5996 (the large spiral galaxy) and NGC 5994 (its smaller companion, in the lower left of the image). Both galaxies lie approximately 160 million light-years from Earth, and their […]
Posted April 5, 2024
Nancy Grace Roman Space Telescope
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
Heliophysics
Missions
Science & Research
Solar Dynamics Observatory (SDO)
Stars
Sunspots
TESS (Transiting Exoplanet Survey Satellite)
The Solar System
The Sun
The Universe

How NASA’s Roman Telescope Will Measure Ages of Stars

Guessing your age might be a popular carnival game, but for astronomers it’s a real challenge to determine the ages of stars. Once a star like our Sun has settled into steady nuclear fusion, or the mature phase of its life, it changes little for billions of years. One exception to that rule is the […]
Posted April 4, 2024
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