Tag

Hubble Space Telescope

All articles tagged with #hubble space telescope

science1 day ago•2 min saved

NASA’s Nancy Grace Roman Space Telescope: Named for a Pioneer, Not Nancy Grace the TV Host

Fox Business host Ashley Webster misidentified NASA's upcoming telescope as being named after Nancy Grace, but the mission honors Nancy Grace Roman, NASA's first chief astronomer and 'mother' of the Hubble Space Telescope. The Nancy Grace Roman Space Telescope, completed in 2025 and set to launch Aug 30, will survey about 1 billion galaxies and help uncover roughly 200,000 exoplanets, with an observation range at least 100 times larger than Hubble's; the name survived funding cuts during the Trump era after Congressional intervention.

via Gizmodo|

#hubble-space-telescope #nancy-grace #nancy-grace-roman-space-telescope

space7 days ago•158 min saved

Hubble and JWST Unite for a Stunning Black Eye Galaxy Composite

Hubble and the James Webb Space Telescope teamed up to capture Messier 64, the Black Eye Galaxy, in a new composite image that combines ultraviolet, visible and infrared data; the galaxy lies about 17 million light-years away and exhibits unusual motion where outer gas rotates opposite to the center, showcasing how the two observatories complement each other. The Black Eye Galaxy is also a popular target for backyard astronomers with small telescopes.

via Space|

#black-eye-galaxy #composite-image #hubble-space-telescope

space12 days ago•206 min saved

Cosmic breadcrumb: first globular-cluster stellar stream spotted beyond the Milky Way

Astronomers discovered the first globular-cluster stellar stream outside the Milky Way, in a galaxy about 115 million light-years away, by analyzing archival data from the Hubble Space Telescope. The faint stellar trail reveals the host galaxy's gravitational field and total mass, offering a new way to map dark matter and understand how galaxies form and evolve across the universe.

via CNN|

#dark-matter #galaxies #globular-clusters

space13 days ago•3 min saved

NASA unveils a vivid collage of the Tarantula Nebula's star-forming region

NASA scientists released a new composite image of the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud, assembled from Chandra X-ray data and infrared data from JWST and Hubble, revealing thousands of young stars in a honeycomb of gas and dust; the researchers say the region is losing energy as hot gas leaks out, with turbulent cooling and heat transfer shaping future star formation, per an Astrophysical Journal paper.

via New York Post|

#30-doradus #hubble-space-telescope #james-webb-space-telescope

space15 days ago•157 min saved

Andromeda's Star Formation Slows, Suspected Trigger: a Neighbor Named M32

Hubble observations show the Andromeda galaxy’s rate of turning gas into stars has dramatically slowed in the last ~40 million years, with the slowdown most pronounced on the side facing its tiny neighbor M32. While researchers acknowledge they can’t prove M32 caused the decline, it is the leading suspect, possibly due to a past collision. The study mapped Andromeda’s history across two-thirds of its disk, finding current star formation at about 0.2 solar masses per year (roughly one-fifth the Milky Way’s rate). The Nancy Grace Roman Space Telescope will help measure more of Andromeda’s stars to further test the M32-link in the coming years.

via Space|

#andromeda #galaxies #hubble-space-telescope

technology22 days ago•4 min saved

LEGO Unveils 1:35 Desktop Hubble Model with Interior Details

LEGO released the Icons Hubble Space Telescope set (11382), a 1,252-piece desktop model priced at $139.99, built to minifigure scale (~1:35) and featuring interior instrument replicas, removable panels, an astronaut minifigure, a display stand, and decals representing the Hubble’s famous observations, created in collaboration with NASA/ESA.

via collectSPACE.com|

#desktop-model #hubble-space-telescope #lego

space1 month ago•13 min saved

Ultraviolet Spotlight Reveals Four Hidden White Dwarfs Within 65 Light-Years

Astronomers using the Hubble Space Telescope’s ultraviolet observations have directly confirmed four white dwarfs hiding in the glare of nearby red-dwarf companions, all within about 65 light‑years. One, G 203-47, is the ninth-closest white dwarf to the Sun. The detections show how UV imaging can reveal faint remnants that optical surveys miss, though three of the four temperatures are only estimates due to noisier data. The census of local white dwarfs within 20 parsecs rises by roughly 16% to 153, suggesting more hidden white-dwarf–red-dwarf pairs may exist and could be uncovered with Gaia data in the future.

via Space Daily|

#hubble-space-telescope #nearby-stars #red-dwarfs

space1 month ago•29 min saved

Hubble and Webb reveal Omega Centauri's hidden stellar-mass black hole after 23-year hunt

Astronomers using two decades of precise astrometry from NASA's Hubble Space Telescope and the James Webb Space Telescope have identified the first stellar-mass black hole in the Milky Way's Omega Centauri, named oMEGACat BH-2, by tracking a visible star's sky motion around an unseen companion. The binary completes an orbit every 94 years, and the black hole weighs about 4.46 solar masses, confirming a black hole rather than a neutron star. The system likely formed through dynamical interactions in the cluster; this discovery supports Omega Centauri's hidden black-hole population and points to more finds as Hubble, Webb, and future missions survey the cluster.

via The Watchers - Watching the world evolve and transform|

#astrometry #hubble-space-telescope #james-webb-space-telescope

space1 month ago•121 min saved

Milky Way Helium Nova Unleashes Cosmic Bullets at 20 Million mph

Using Hubble, plus NASA’s TESS and ground-based telescopes, astronomers confirmed that the Milky Way’s only known helium nova, V445 Puppis, blasts out fast, oxygen-rich clumps—‘bullets’—traveling about 20 million mph. The system comprises a white dwarf accreting helium from a companion helium-star, a rare binary that sheds light on hydrogen-poor stellar explosions and their potential links to Type Ia supernovae; debris clearing over two decades allowed a clearer view of the eruption and hints that another nova could occur.

via Space|

#binary-star #helium-nova #hubble-space-telescope

science1 month ago•13 min saved

Omega Centauri's 94-Year Binary Unveils Its First Stellar-Mass Black Hole

Astronomers using two decades of Hubble imagery and JWST data have identified the first stellar-mass black hole in the globular cluster Omega Centauri, designated oMEGACat BH-2, weighing about 4.46 solar masses and in a 94-year orbit around a sun-like star — the longest-period black hole binary yet found. The discovery, based on precise astrometry of stellar wobble, supports the existence of a hidden population of black holes in metal-poor clusters, though the period and mass have uncertainties due to partial orbital coverage; further observations with JWST and upcoming missions will refine the parameters and reveal more such systems.

via Space Daily|

#astrometry #black-hole #hubble-space-telescope

space1 month ago•107 min saved

Omega Centauri Unveils Its First Hidden Stellar-Mass Black Hole

Astronomers using over two decades of Hubble data and JWST observations have confirmed the first stellar-mass black hole in the Omega Centauri globular cluster, designated oMEGACat BH-2, with a mass of 4.46 solar masses orbiting a sun-like star every 94 years. The finding suggests Omega Centauri could host a large hidden population of such black holes and highlights astrometry as a key method, with plans to find more using Roman Space Telescope in the future.

via Space|

#astrometry #hubble-space-telescope #james-webb-space-telescope

science1 month ago•14 min saved

Hubble’s in-space glasses restore its vision

Hubble launched with a 2.4‑m mirror polished to the wrong shape by about 2.2 micrometres, causing blurred images from spherical aberration. A misassembled null corrector led to the flawed mirror passing testing. During a 1993–1994 servicing mission, astronauts installed corrective optics (including COSTAR and WFPC2) and performed five spacewalks to redirect light to a common focal point, effectively giving the telescope “glasses.” The repair restored near-planned optical performance, though the primary mirror remained imperfect; later instruments replaced COSTAR as technology evolved. The episode underscores the value of serviceable design and rigorous testing in space projects.

via Space Daily|

#astronomy #costar #hubble-space-telescope

science1 month ago•4 min saved

Four Hidden White Dwarfs Detected in Nearby Binary Star Systems

Astronomers using ultraviolet data from the Hubble Space Telescope confirmed four nearby red-dwarf binaries host concealed white dwarfs, each within 65 light-years. One system, G 203-47, harbors the ninth-closest white dwarf and shows unusual, unsynchronized rotation, hinting at varied evolutionary histories for such binaries. The findings revise the local white-dwarf census and suggest more hidden companions may lurk among nearby red dwarfs.

via ScienceDaily|

#binary-star-systems #hubble-space-telescope #red-dwarfs

science1 month ago•14 min saved

Astronomers uncover first stellar-mass black hole in Omega Centauri with Hubble and Webb

University of Utah researchers used two decades of Hubble data and recent JWST observations to measure stellar motions via astrometry, revealing Omega Centauri’s first stellar-mass black hole, oMEGACat BH-2, with a mass of about 4.46 solar masses and a 94-year orbit—the longest known for a black hole binary. The discovery in this metal-poor globular cluster challenges existing formation theories and suggests such black hole populations may be common, with future surveys (including NASA’s Roman Space Telescope) likely to find more.

via KSL News|

#astrometry #black-hole #hubble-space-telescope

space1 month ago•12 min saved

Crab Nebula Still Expanding: A Millennium-Old Supernova Remnant in Motion

Hubble re-imaged the Crab Nebula to measure its ongoing expansion since SN 1054, finding filaments moving about 0.3 arcseconds per year (roughly 3.4 million mph) driven by energy from the central pulsar; the thousand-year-old remnant is not a static shell and new filament groups with similar emission were identified, linking the medieval guest star to a living, evolving nebula about 6,500 light-years away in Taurus.

via Space Daily|

#crab-nebula #expansion #hubble-space-telescope