Astronomy News

Hubble Snaps Super-Sharp Image of Jupiter

This new Hubble image of Jupiter, taken on June 27, 2019, reveals the giant planet’s Great Red Spot, and a more intense color palette in the clouds swirling in Jupiter's turbulent atmosphere than seen in previous years. The colors, and their changes, provide important clues to ongoing processes in Jupiter’s atmosphere. The bands are created by differences in the thickness and height of the ammonia ice clouds. The colorful bands, which flow in opposite directions at various latitudes, result from different atmospheric pressures. Lighter bands rise higher and have thicker clouds than the darker bands. Image credit: NASA / ESA / A. Simon, NASA’s Goddard Space Flight Center / M.H. Wong, University of California, Berkeley.
Aug 9, 2019 by News Staff

The NASA/ESA Hubble Space Telescope obtained a detailed image of Jupiter on June 27, 2019, when the gas giant was approximately 400 million miles (644 million km) from Earth. The image features Jupiter’s most distinctive feature, the Great Red Spot, and a more intense color palette in the clouds swirling in the giant planet’s turbulent atmosphere than seen in previous years. This new Hubble image of Jupiter, taken on June 27, 2019, reveals the...

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ALMA made the most precise measurements of cold gas swirling around a supermassive black hole -- the cosmic behemoth at the center of the giant elliptical galaxy NGC 3258. The multi-color ellipse reflects the motion of the gas orbiting the black hole, with blue indicating motion toward us and red motion away from us. The inset box represents how the orbital velocity changes with distance from the black hole. The material was found to rotate faster the closer in the astronomers observed to the black hole, enabling them to accurately calculate its mass: a whopping 2.25 billion times the mass of our Sun. Image credit: ALMA / ESO / NAOJ / NRAO / B. Boizelle / AUI / NSF / S. Dagnello / Hubble Space Telescope / NASA / ESA / Carnegie-Irvine Galaxy Survey.

ALMA Determines Mass of Supermassive Black Hole in NGC 3258

Aug 8, 2019 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed the dynamical sphere of influence of a supermassive black hole...

Colorful and wispy Sharpless 2-296 forms the ‘wings ‘ of an area of sky known as the Seagull Nebula -- named for its resemblance to a gull in flight. This celestial bird contains a fascinating mix of intriguing astronomical objects. Glowing clouds weave amid dark dust lanes and bright stars. The Seagull Nebula -- made up of dust, hydrogen, helium and traces of heavier elements -- is the hot and energetic birthplace of new stars. Image credit: ESO / VPHAS+ Team / N.J. Wright, Keele University.

ESO’s VLT Survey Telescope Observes Seagull Nebula

Aug 8, 2019 by News Staff

The VLT Survey Telescope (VST), a large telescope at ESO’s Paranal Observatory, has taken a brilliant picture of the Seagull Nebula, which lies along...

This image (colorized), taken by the International Scientific Optical Network (ISON), shows the near-Earth asteroid 2019 OK. Image credit: S. Schmalz / ISON.

Astronomers Snap Images of Near-Earth Asteroid 2019 OK

Aug 7, 2019 by News Staff

Using several telescopes of the International Scientific Optical Network (ISON), astronomers have captured a series of images of the recently-discovered...

This image shows HIP 52181 (blue star in the center), a pulsating subdwarf O-star. Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / SDSS.

New Class of Pulsating Stars Discovered

Aug 6, 2019 by News Staff

An international team of astronomers from the United States, Germany and Israel has discovered a new class of pulsators that vary in brightness every 5...

Supermassive black holes at the cores of galaxies blast radiation and ultra-fast winds outward, as illustrated in this artist’s conception. Image credit: NASA / JPL-Caltech.

Ultramassive Black Hole Found in Elliptical Galaxy Holmberg 15A

Aug 5, 2019 by Sergio Prostak

Astronomers using ESO’s Very Large Telescope (VLT) have discovered an enormous black hole at the center of Holmberg 15A, a supergiant elliptical galaxy...

Two interacting galaxies UGC 2369N and UGC 2369S were imaged using 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. Evans.

Hubble Watches Graceful Dance of Interacting Galaxies: UGC 2369

Aug 5, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking view of UGC 2369, a pair of interacting galaxies. Two interacting galaxies UGC 2369N and UGC...

This image shows the ultra-metal-poor star SMSS J160540.18-144323.1. Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / PanSTARRS.

Astronomers Discover Milky Way’s Most Iron-Poor Star

Aug 2, 2019 by News Staff

SMSS J160540.18-144323.1, an ultra-metal-poor red giant star located in the halo of the Milky Way, on the other side of the Galaxy about 35,000 light-years...

Astronomers Create New 3D Map of Milky Way Galaxy

Aug 2, 2019 by News Staff

By measuring the distance from the Sun to thousands of classical Cepheid stars and the associated young stellar populations scattered across the Milky...

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...

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