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NASA/JPL

homer in space

Space Station Study Shows Astronauts Process Tasks More Slowly, But Maintain Accuracy

Categories Brain & Behavior, Space

This artist's illustration depicts the Large Magellanic Cloud (LMC) in the foreground as it passes through the gaseous halo of the much larger Milky Way galaxy. The encounter has stripped away much of the LMC's spherical gas halo, leaving a trailing gas stream resembling a comet's tail. However, a compact halo remains intact, and scientists predict this residual halo will not dissipate entirely. The research team studied the LMC's halo by analyzing the light from 28 quasars, exceptionally bright active galactic nuclei that act as "lighthouse beacons" across the universe. This light enables scientists to detect the halo gas indirectly, as the gas absorbs some of the quasars' light. The lines in the illustration represent the path of the Hubble Space Telescope's observations, from its orbit around Earth to the distant quasars, passing through the LMC's gas halo.

Hubble Reveals Impact of Galaxy’s Close Encounter with Milky Way

Categories Space

Uranus

New Analysis Reveals Uranus’s Magnetic Field Was in Rare State During Voyager Flyby

Categories Space

Hubble and Webb Observations of Vega Circumstellar Debris Disk. [left]-A Hubble Space Telescope false-color view of a 100-billion-mile-wide disk of dust around the summer star Vega. Hubble detects reflected light from dust that is the size of smoke particles largely in a halo on the periphery of the disk. The disk is very smooth, with no evidence of embedded large planets. The black spot at the center blocks out the bright glow of the hot young star. [right]-The James Webb Space Telescope resolves the glow of warm dust in a disk halo, at 23 billion miles out. The outer disk (analogous to the solar system’s Kuiper Belt) extends from 7 billion miles to 15 billion miles. The inner disk extends from the inner edge of the outer disk down to close proximity to the star. There is a notable dip in surface brightness of the inner disk from approximately 3.7 to 7.2 billion miles. The black spot at the center is due to lack of data from saturation.

Hubble and Webb Reveal Mysteriously Smooth Disk Around Bright Star Vega

Categories Physics & Mathematics, Space

SpaceX Crew-8 astronauts (top to bottom) NASA's Jeanette Epps, Mike Barratt & Matthew Dominick, and Roscosmos cosmonaut Alexander Grebenkin onboard the ISS.

Space Station Crew Returns After Advancing Cancer Research and Stem Cell Manufacturing in Orbit

Categories Health, Space, Technology

The prototype LISA telescope undergoes post-delivery inspection in a darkened NASA Goddard clean room on May 20. The entire telescope is made from an amber-colored glass-ceramic that resists changes in shape over a wide temperature range, and the mirror’s surface is coated in gold.

NASA reveals prototype telescope for gravitational wave observatory

Categories Physics & Mathematics, Space

NASA's Hubble Space Telescope (left) and NASA's New Horizon's spacecraft (right) image the planet Uranus.

NASA Teams Up for a Double Take on Uranus: Hubble and New Horizons Get Up Close and Personal

Categories Space

This visualization shows Psyche’s position on July 29 when the uplink station for NASA’s Deep Space Optical Communications sent a laser signal about 290 million miles to the spacecraft. See an interactive version of the Psyche spacecraft in NASA’s Eyes on the Solar System. Credit: NASA/JPL-Caltech

NASA’s Laser Communication Breaks Distance Record, Paving Way for Future Space Exploration

Categories Space, Technology

This is an artist's concept looking down into the core of the giant elliptical galaxy M87. A supermassive black hole ejects a 3,000-light-year-long jet of plasma, traveling at nearly the speed of light. In the foreground, to the right is a binary star system. The system is far from the black hole, but in the vicinity of the jet. In the system an aging, swelled-up, normal star spills hydrogen onto a burned-out white dwarf companion star. As the hydrogen accumulates on the surface of the dwarf, it reaches a tipping point where it explodes like a hydrogen bomb. Novae frequently pop-off throughout the giant galaxy of 1 trillion stars, but those near the jet seem to explode more frequently. So far, it's anybody's guess why black hole jets enhance the rate of nova eruptions.

NASA’s Hubble finds that a black hole beam promotes stellar eruptions

Categories Physics & Mathematics, Space

Island at sea

NASA Analysis Shows Irreversible Sea Level Rise for Pacific Islands

Categories Earth, Energy & Environment

A comparison of JunoCam data from April 2024 with imagery from the Galileo mission of the same area in November 1997 (greyscale insert) reveals a new volcanic feature on the surface of Jupiter’s moon, Io.

New Volcano Discovered on Jupiter’s Moon Io in First Close-Up Images in 25 Years

Categories Space

The galaxy cluster MACS-J0417.5-1154 is so massive that it bends the fabric of space-time. This causes the appearance of galaxies behind it to be distorted, an effect known as gravitational lensing. This natural phenomenon magnifies distant galaxies and can also make them appear in an image multiple times, as NASA's James Webb Space Telescope has observed. In this image, two distant, interacting galaxies - a face-on spiral and a dusty red galaxy seen from the side - appear multiple times, tracing a familiar shape across the sky. The fact that these galaxies are actively forming stars and that the face-on galaxy's spiral shape is remarkably intact indicates that their interaction is just beginning.

Webb Telescope Unveils Rare Cosmic ‘Question Mark’ in Distant Galaxy

Categories Physics & Mathematics, Space

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