Tag Archive for 'Lyman-alpha radiation'

This image shows JADES-GS-z13-1 (the red dot at center), imaged with Webb’s Near-Infrared Camera (NIRCam) as part of the JADES program. Image credit: NASA / ESA / CSA / Webb / STScI / JADES Collaboration / Brant Robertson, UC Santa Cruz / Ben Johnson, CfA / Sandro Tacchella, Cambridge / Phill Cargile, CfA / J. Witstok, P. Jakobsen & A. Pagan, STScI / M. Zamani, ESA & Webb.

Webb Detects Lyman-Apha Emission from Galaxy in Early Universe

Mar 30, 2025 by News Staff

The Lyman-apha light from JADES-GS-z13-1 has taken nearly 13.47 billion years to reach us, as it dates back to just 330 million years after the Big Bang. This...

This composite image shows the Saturn Lyman-alpha bulge, an emission from hydrogen which is a persistent and unexpected excess detected by NASA’s Voyager 1 spacecraft, NASA’s Cassini probe, and the NASA/ESA Hubble Space Telescope between 1980 and 2017. Image credit: NASA / ESA / Lotfi Ben-Jaffel, IAP & LPL.

Saturn’s Rings are Heating Gas Giant’s Upper Atmosphere, Astronomers Say

Mar 30, 2023 by News Staff

The most feasible explanation is that icy ring particles raining down onto Saturn’s atmosphere cause this heating, according to a team of astronomers...

This impressive view of Charon was captured on July 14, 2015. Charon’s color palette is not as diverse as Pluto’s; most striking is the reddish north (top) polar region, informally named Mordor Macula. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute.

New Research Sheds Light on Origin of Charon’s Red Polar Cap

Jun 21, 2022 by News Staff

The thin methane atmosphere of Pluto’s biggest moon, Charon, undergoes ‘explosive’ pulsations owing to the Pluto-Charon’s system’s near sideways...

Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail

May 5, 2022 by News Staff

One of the new images, taken by the Extreme Ultraviolet Imager (EUI) aboard the ESA/NASA Solar Orbiter spacecraft on March 7, 2022, is the highest resolution...

This artist’s illustration shows NASA’s New Horizons spacecraft in the outer Solar System. In the background lies the Sun and a glowing band representing Zodiacal Light, caused by sunlight reflecting off of dust. Image credit: Joe Olmsted / STScI.

New Horizons Detects Galactic Lyman-alpha Emissions

Nov 23, 2021 by News Staff

Hydrogen is the most abundant element. When a neutral hydrogen atom gets blasted with energy, its electron can be boosted to a larger orbit with a higher...

This artist’s impression shows a supermassive black hole in the center of SDSS J1030+0524 and six galaxies -- four Lyman-break galaxies and two Lyman-alpha emitting galaxies -- trapped in its gas web. The large web-like structure extends over 300 times the size of the Milky Way. Image credit: L. Calçada / ESO.

Web of the Giant: Astronomers Spot Six Galaxies around Monster Quasar

Oct 2, 2020 by News Staff

Using the MUSE and FORS2 instruments on ESO’s Very Large Telescope (VLT), astronomers have spotted a group of six galaxies around SDSS J1030+0524, a...

An artist’s impression of BOSS-EUVLG1, a star-forming galaxy located some 12 billion light-years away in the constellation of Virgo. Image credit: Gabriel Pérez Díaz, SMM / IAC.

Astronomers Discover Most Luminous, Un-Obscured Star-Forming Galaxy Ever Seen

Sep 28, 2020 by Natali Anderson

A young starburst galaxy named BOSS-EUVLG1 is by far the most luminous, almost un-obscured star-forming galaxy known at any redshift. An artist’s impression...

The extent of Earth’s geocorona. Image credit: ESA.

Earth’s Hydrogen Geocorona Extends Well Beyond Moon

Feb 22, 2019 by News Staff

Recent observations from the NASA/ESA Solar and Heliospheric Observatory (SOHO) show that the Earth’s hydrogen envelope reaches up to 391,500 miles...

The exquisite sensitivity of the MUSE spectrograph on ESO’s Very Large Telescope allowed for direct observations of dim clouds of hydrogen glowing with Lyman-alpha emission in the early Universe. Image credit: NASA / ESA / Hubble / ESO / Lutz Wisotzki et al.

Early Universe is Glowing with Lyman-alpha Emission

Oct 3, 2018 by News Staff

Astronomers using the Multi Unit Spectroscopic Explorer (MUSE) instrument on ESO’s Very Large Telescope have discovered an unexpected abundance of Lyman-alpha...

Artist’s impression of a cloud of trapped antihydrogen atoms. Image credit: Chukman So.

CERN Physicists Observe Lyman-alpha Transition in Antihydrogen

Aug 24, 2018 by News Staff

Physicists from the ALPHA Collaboration at CERN have detected the Lyman-alpha transition — when the hydrogen electron transitions between the lowest-energy...

An artist’s concept showing the gaseous halo surrounding a galaxy, illuminated by a narrow band of ultraviolet light called Lyman alpha emission. Image credit: T. Klein, University of Wisconsin-Milwaukee.

Giant Gaseous Halo Surrounds Young Star-Forming Galaxy

Jul 26, 2018 by News Staff

Q2343-BX418, a young star-forming galaxy located about 10 billion light years away from Earth, is surrounded by an enormous halo of gas, according to new...

One of the six dark galaxy candidates detected by the team. Image credit: Marino et al, doi: 10.3847/1538-4357/aab6aa.

Astronomers Detect Six Dark Galaxies in Early Universe

May 25, 2018 by Enrico de Lazaro

Astronomers using the Multi Unit Spectroscopic Explorer (MUSE) instrument on ESO’s Very Large Telescope (VLT) in Chile have detected six dark galaxies,...

This color image shows the Hubble Ultra Deep Field region, as observed with the MUSE instrument on ESO’s Very Large Telescope. Image credit: ESO / MUSE HUDF Collaboration.

ESO’s MUSE Instrument Explores Hubble Ultra Deep Field

Dec 1, 2017 by News Staff

Astronomers using the Multi Unit Spectroscopic Explorer (MUSE) instrument on ESO’s Very Large Telescope have observed the Hubble Ultra Deep Field (HUDF),...

This MUSE image shows a huge cloud of gas around the distant quasar 4C 10.29. Image credit: Arrigoni Battaia et al / ESO.

Astronomers Spot Giant Nebula around Distant Quasar

Nov 24, 2017 by News Staff

Astronomers using ESO’s Very Large Telescope in Chile have discovered an enormous cloud of gas around an extremely distant quasar called 4C 10.29. This...

This artist’s impression shows a Milky Way-type galaxy, surrounded by a large halo of blue, faint light, made of Lyman-alpha photons. Image credit: L. Calçada / ESO.

Photons Struggle to Escape Early Milky Way-Type Galaxies

Jan 11, 2017 by News Staff

An international team of astronomers has discovered enormous halos of blue, faint light — made of so-called Lyman-alpha photons — around early...

This image shows the Lyman-alpha blob LAB-1. This picture is a composite of two different images taken with the FORS instrument on ESO’s Very Large Telescope - a wider image showing the surrounding galaxies and a much deeper observation of the blob itself at the center made to detect its polarization. The intense Lyman-alpha ultraviolet radiation from LAB-1 appears green after it has been stretched by the expansion of the Universe during its long journey to Earth. These new observations show for the first time that the light from this object is polarized. This means that the giant ‘blob’ must be powered by galaxies embedded within the cloud. Image credit: M. Hayes / ESO.

Astronomers Unravel Mystery of Gigantic Lyman-Alpha Blobs

Sep 21, 2016 by News Staff

This image shows the Lyman-alpha blob LAB-1. This picture is a composite of two different images taken with the FORS instrument on ESO’s Very Large Telescope...