2 min read NASA’s TESS Returns to Science Operations NASA’s TESS (Transiting Exoplanet Survey Satellite) has returned to work after science observations were suspended on April 8, when the spacecraft entered into safe mode. All instruments are powered on and, following the successful download of previously collected science data stored in the mission’s recorder, are now making new science observations. Analysis of what triggered the satellite to enter safe mode is ongoing. The TESS mission is a NASA Astrophysics Explorer operated by MIT in Cambridge, Massachusetts. Launched in 2018, TESS…
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Astronauts To Patch Up NASA’s NICER Telescope
4 min read 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. In May 2023, scientists discovered that NICER had developed a “light leak.” Unwanted sunlight was entering the instrument and reaching the telescope’s sensitive detectors. While the team took immediate steps to mitigate the impact on observations, they also began thinking about a potential…
Read MoreHubble Spots a Galaxy Hidden in a Dark Cloud
2 min read Hubble Spots a Galaxy Hidden in a Dark Cloud This Hubble image features the spiral galaxy IC 4633. ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA; Acknowledgement: L. Shatz 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 is tilted mostly…
Read MoreHubble Peers at Pair of Closely Interacting Galaxies
2 min read Hubble Peers at Pair of Closely Interacting Galaxies This NASA/ESA Hubble Space Telescope image features Arp 72. ESA/Hubble & NASA, L. Galbany, J. Dalcanton, Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA 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 cores are separated from each…
Read MoreNASA’s Tiny BurstCube Mission Launches to Study Cosmic Blasts
4 min read NASA’s Tiny BurstCube Mission Launches to Study Cosmic Blasts BurstCube, shown in this artist’s concept, will orbit Earth as it hunts for short gamma-ray bursts. NASA’s Goddard Space Flight Center Conceptual Image Lab NASA’s BurstCube, a shoebox-sized satellite designed to study the universe’s most powerful explosions, is on its way to the International Space Station. The spacecraft travels aboard SpaceX’s 30th Commercial Resupply Services mission, which lifted off at 4:55 p.m. EDT on Thursday, March 21, from Launch Complex 40 at Cape Canaveral Space Force Station in…
Read MoreHubble Views a Galaxy Under Pressure
2 min read Hubble Views a Galaxy Under Pressure This NASA/ESA Hubble Space Telescope image shows dwarf galaxy, LEDA 42160. ESA/Hubble & NASA, M. Sun This NASA/ESA Hubble Space Telescope image shows LEDA 42160, a galaxy about 52 million light-years from Earth in the constellation Virgo. The dwarf galaxy is one of many forcing its way through the comparatively dense gas in the massive Virgo cluster of galaxies. The pressure exerted by this intergalactic gas, known as ram pressure, has dramatic effects on star formation in LEDA 42160. The gas…
Read MorePeering Into the Tendrils of NGC 604 with NASA’s Webb
4 Min Read Peering Into the Tendrils of NGC 604 with NASA’s Webb Star-forming region NGC 604. Credits: NASA, ESA, CSA, STScI The formation of stars and the chaotic environments they inhabit is one of the most well-studied, but also mystery-shrouded, areas of cosmic investigation. The intricacies of these processes are now being unveiled like never before by NASA’s James Webb Space Telescope. Two new images from Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) showcase star-forming region NGC 604, located in the Triangulum galaxy (M33), 2.73 million light-years away…
Read MoreAstrophysics Instruments
Science in Space – February 2024 Instruments on the exterior of the International Space Station provide data on astrophysical phenomena that are helping scientists better understand our universe and its origins. Crew members install and maintain these instruments robotically and scientific teams operate them remotely. One of the instruments, the Neutron star Interior Composition Explorer (NICER), measures X-rays emitted by neutron stars and other cosmic objects to help answer questions about matter and gravity. Neutron stars, the densest measurable objects in the universe, are the remains of massive stars that…
Read MoreEclipse Resources for Learners and Educators: Connecting the Eclipse to Astrophysics
1 min read Eclipse Resources for Learners and Educators: Connecting the Eclipse to Astrophysics In anticipation of the upcoming total solar eclipse on April 8, 2024, NASA’s Universe of Learning has created a webpage of astrophysics-related eclipse resources for learners and educators. The webpage shares information about two topics that align with eclipse science: gravitational lensing and exoplanet transits. The collection of resources includes articles, images, and videos to understand and explain the science. Additional activities allow learners to explore gravitational lensing and exoplanet transit science for themselves. Explore Resources…
Read MoreStellar Beads on a String
Galaxy cluster SDSS J1531+3414 X-ray: NASA/CXC/SAO/O. Omoruyi et al.; Optical: NASA/ESA/STScI/G. Tremblay et al.; Radio: ASTRON/LOFAR; Image Processing: NASA/CXC/SAO/N. Wolk Astronomers have discovered one of the most powerful eruptions from a black hole ever recorded in the system known as SDSS J1531+3414 (SDSS J1531 for short). As explained in our press release, this mega-explosion billions of years ago may help explain the formation of a striking pattern of star clusters around two massive galaxies, resembling “beads on a string.” SDSS J1531 is a massive galaxy cluster containing hundreds of individual galaxies and huge reservoirs of hot gas and dark…
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