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This artist’s illustration shows WASP-121b, an alien world that is losing magnesium and iron gas from its atmosphere. Image credit: NASA / ESA / J. Olmsted, STScI.

Metal-Rich Gas Seen Streaming from Hot Jupiter WASP-121b

Aug 1, 2019 by News Staff

WASP-121b is about two times bigger than Jupiter and 1.2 times more massive. Discovered in 2016, the planet is located 881 light-years away in the constellation...

Illustration depicting one interpretation of the exoplanet GJ 357d. Image credit: Chris Smith / NASA’s Goddard Space Flight Center.

Three Small Planets Orbit Nearby Red Dwarf Star GJ 357

Aug 1, 2019 by News Staff

Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and several ground-based telescopes, astronomers have discovered three small exoplanets...

An illustration of an asteroid in space. Image credit: NASA / JPL / Caltech.

Big Asteroid Buzzed Past Earth Last Week: 2019 OK

Jul 31, 2019 by The Conversation

A 330-foot- (100 m) wide asteroid designated 2019 OK passed just 43,500 miles (70,000 km) from Earth on July 25, 2019. It was discovered by the Brazilian...

This image from ESO’s SPECULOOS Observatory shows the massive galaxy Centaurus A. Image credit: ESO / SPECULOOS Team / E. Jehin.

ESO Astronomers Capture Stunning Image of Centaurus A Galaxy

Jul 31, 2019 by Enrico de Lazaro

Astronomers using robotic telescopes at ESO’s newest planet-hunting SPECULOOS (Search for habitable Planets EClipsing ULtra-cOOl Stars) Observatory in...

The central region of our Milky Way Galaxy. Image credit: NASA / CXC.

Chandra Celebrates 20th Anniversary with Spectacular X-Ray Images of Astrophysical Objects

Jul 31, 2019 by News Staff

On July 23, 1999, NASA’s Space Shuttle Columbia blasted off from the Kennedy Space Center carrying the agency’s Chandra X-ray Observatory. Twenty years...

An artist’s impression of Jupiter’s moon Europa occulting a distant star. Image credit: NASA / JPL-Caltech / DLR / Sci-News.com.

Astronomers Observe Stellar Occultation by Jupiter’s Moon Europa

Jul 29, 2019 by News Staff

In March 2017, Brazilian National Observatory astronomer Bruno Morgado and colleagues took advantage of the beginning of the Jupiter passage through a...

TESS discovered three small exoplanets around nearby stars. Image credit: NASA’s Goddard Space Flight Center / MIT News.

TESS Successfully Completes First Year of Science Operations

Jul 29, 2019 by News Staff

NASA’s Transiting Exoplanets Survey Satellite (TESS) has discovered over two dozen extrasolar planets and captured data on other astronomical events...

This Hubble image shows the edge-on distorted spiral galaxy NGC 3432. The color image was made from separate exposures taken in the visible region of the spectrum with Hubble’s Advanced Camera for Surveys (ACS). Two filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / A. Filippenko / R. Jansen.

Hubble Space Telescope Sees NGC 3432: Edge-On and Distorted

Jul 29, 2019 by Natali Anderson

The NASA/ESA Hubble Space Telescope has captured a striking new photo of the edge-on spiral galaxy NGC 3432. This Hubble image shows the edge-on distorted...

A star known as S0-2 made its closest approach to Sagittarius A*, the a supermassive black hole at the center of the Milky Way, in 2018. Image credit: Nicolle Fuller / National Science Foundation.

Einstein’s Theory of General Relativity Aces Relativistic Redshift Test

Jul 26, 2019 by News Staff

In a test of Einstein’s theory of general relativity near the supermassive black hole at the center of our Milky Way Galaxy, an international group of...

An artist’s impression of a pair of orbiting white dwarfs, ZTF J153932.16+502738.8. Image credit: Caltech / IPAC.

Astronomers Discover Record-Breaking White Dwarf Binary System

Jul 25, 2019 by News Staff

Astronomers using the KPED (Kitt Peak Electron Multiplying CCD demonstrator) instrument at NSF’s Kitt Peak National Observatory have discovered ZTF J153932.16+502738.8,...

An artist’s rendering of a gas giant in a binary stellar system. Image credit: NASA / JPL-Caltech / T. Pyle.

TESS Finds Still-Forming Gas Giant in Binary Star System

Jul 25, 2019 by News Staff

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered an exoplanet planet larger than Neptune but smaller than Saturn...

Shaded gray contours outline the extent of the Local Void, while blue dots show major mass constituents (large galaxies, galaxy groups, and clusters). The curved blue lines show the derived motions of these massive objects, after removing the overall expansion of the Universe. The most important galaxy congregations are given special symbols, like the red ball identifying the Virgo Cluster. The dominant pattern of motions revealed by the orbits is a flow away from the Local Void. Image credit: University of Hawaii.

Astronomers Create 3D Map of Local Void

Jul 23, 2019 by News Staff

An international team of astronomers has mapped the size and shape of the Local Void, a large underdense region of the Universe, on the outskirts of which...

Hot Jupiters Have Powerful Magnetic Fields

Jul 23, 2019 by News Staff

Hot Jupiters — massive gaseous exoplanets orbiting close to their host stars — have surprisingly powerful magnetic fields, many times stronger...

This Hubble image shows the spiral galaxy NGC 3169. The color image is made up of observations from Hubble’s Advanced Camera for Surveys (ACS) in the near-infrared, and optical parts of the spectrum. two filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Ho.

Hubble Snaps Beautiful Image of NGC 3169

Jul 22, 2019 by Natali Anderson

The NASA/ESA Hubble Space Telescope has captured an amazing new photo of the spiral galaxy NGC 3169. This Hubble image shows the spiral galaxy NGC 3169....

This image from Data Release 1 of the Dark Energy Survey shows 2MASX J04180598-6336523, the host galaxy of the Type Ia supernova ASASSN-18tb; the position of the supernova is marked by the white ticks. Image credit: Kollmeier et al, doi: 10.1093/mnras/stz953.

TESS Observes Unusual Type Ia Supernova: ASASSN-18tb

Jul 19, 2019 by News Staff

Astronomers have used NASA’s Transiting Exoplanet Survey Satellite (TESS) to see what was happening around the supernova ASASSN-18tb in the first moments...

An artist’s impression of the gas giant Kepler 1625b with its large moon, Kepler 1625b-i; the pair has a similar mass and radius ratio to the Earth-Moon system but scaled up by a factor of 11. Image credit: Sci-News.com.

Large Moons around Extrasolar Gas Giants Could Become ‘Ploonets’

Jul 18, 2019 by News Staff

Ploonets — large regular moons ejected from orbits around close-in gas giant exoplanets — could explain many baffling astronomical observations,...

An artist’s impression of LTT 1445Ab in the triple-star system LTT 1445. Image credit: Sci-News.com.

Newly-Discovered Rocky Exoplanet Has Three Red Suns

Jul 17, 2019 by Natali Anderson

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered a terrestrial planet orbiting a star in the triple-star system...

An artist’s impression of the circumplanetary disk around PDS 70c. Image credit: NRAO / AUI / NSF / S. Dagnello.

ALMA Spots Moon-Forming Disk around Young Gas Giant PDS 70c

Jul 16, 2019 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have spotted a circumplanetary disk around a still-forming gaseous exoplanet...

This Hubble image shows the multi-armed spiral galaxy NGC 2985. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS). It is based on data obtained through two filters: F658W and F814W. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Ho.

Hubble Sees Multi-Armed Spiral Galaxy

Jul 15, 2019 by Natali Anderson

The NASA/ESA Hubble Space Telescope has captured a striking new photo of the spiral galaxy NGC 2985. This Hubble image shows the multi-armed spiral galaxy...