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Image: Hubble views a galactic supernova site

This image features a relatively small galaxy known as UGC 5189A, which is located about 150 million light-years away in the constellation Leo. This galaxy was observed by the NASA/ESA Hubble Space Telescope to study a supernova ...

Astronomers rule out one explanation for the Hubble tension

Perhaps the greatest and most frustrating mystery in cosmology is the Hubble tension problem. Put simply, all the observational evidence we have points to a universe that began in a hot, dense state, and then expanded at ...

Another example of a fantastic Einstein ring

The most evocative astronomy images take us across space and time to stars and galaxies billions of light-years away. Nestled at the center of this one, taken by the Hubble Space Telescope, is a collection of three galaxies. ...

Webb spots a second lensed supernova in a distant galaxy

In November 2023, the James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant galaxy named MRG-M0138 ...

NASA's Hubble watches 'spoke season' on Saturn

Though Saturn's unusual-looking "cup handle" features were first noted by Galileo in 1610, it would be another 45 years before they were described by Christiaan Huygens as a disk surrounding Saturn. Subsequently, ground-based ...

Prepping for data from the Nancy Grace Roman Space Telescope

As part of a plan to prepare for the quantity and range of data that will be coming in from the Nancy Grace Roman Space Telescope, currently scheduled to launch by May 2027, NASA has granted funding to five project infrastructure ...

Surface of Saturnian moon Enceladus shields buried organics

The Saturnian moon Enceladus presents a unique opportunity in our solar system to search for evidence of life, given its habitable ocean and plume that deposits organic-bearing ocean material onto the surface.

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