Tag Archive for 'Exoplanet'

This artist’s impression shows the view from the surface of one of the exoplanets in the TRAPPIST-1 planetary system. Image credit: ESO / M. Kornmesser / Spaceengine.org.

TRAPPIST-1: Nearby Dwarf Star Hosts Seven Earth-Size Exoplanets

Feb 22, 2017 by News Staff

A system of seven exoplanets — three in their star’s habitable zone — has been found by an international team of astronomers. This artist’s...

An artist’s impression of PTFO8-8695 b, which is believed to orbit a star in the constellation Orion every 11 hours. Image credit: A. Passwaters / Rice University.

Astronomers Observe First Exoplanet-Induced Stellar Pulsations

Feb 14, 2017 by News Staff

Astronomers have detected strange pulsations in the outer shell of a star called HAT-P-2, and their best guess is that a closely orbiting exoplanet causes...

Artist’s concept of the super-Earth exoplanet GJ 411b. Image credit: Ricardo Ramirez.

Astronomers Reveal Catalog of Nearby Stars, Detect 114 Potential Exoplanets

Feb 13, 2017 by News Staff

Astronomers today released the largest-ever compilation of exoplanet-detecting observations made with a technique called radial velocity. They also demonstrated...

This artist’s impression shows Proxima b orbiting Proxima Centauri, which at only 4.23 light-years is the closest star to our Solar System. The double star Alpha Centauri AB also appears in the image between the exoplanet and Proxima itself. Image credit: M. Kornmesser / ESO.

Exoplanets in Habitable Zones of Active Red Dwarfs May Face Oxygen Loss

Feb 11, 2017 by News Staff

A team of researchers led by Vladimir Airapetian, a solar scientist at NASA’s Goddard Space Flight Center, has developed a model that estimates the oxygen...

Astronomers Characterize Wolf 1061 Planetary System

Jan 20, 2017 by Enrico de Lazaro

A research team led by San Francisco State University astronomer Stephen Kane has obtained new observations of Wolf 1061, known to host at least three...

An artist’s rendition of interior compositions of planets around Kepler-102 and Kepler-407. The picture shows what minerals are likely to occur several different depths. An exoplanet in orbit around Kepler-102 is Earth-like, dominated by olivine minerals, whereas a planet around Kepler-407 is dominated by garnet, so less likely to have plate tectonics. Image credit: Robin Dienel / Carnegie Institution.

Garnet Exoplanets Exist, But Can They Be Habitable?

Jan 11, 2017 by News Staff

Astronomers and geoscientists from the United States and Brazil have joined forces to study the mix of major rock-building elements in exoplanet-hosting...

This image shows the closest stellar system to the Sun, the bright double star Alpha Centauri AB and its distant and faint companion Proxima Centauri. Image credit: ESO / B. Tafreshi, twanight.org / Digitized Sky Survey 2 / Davide De Martin / Mahdi Zamani.

ESO Joins Breakthrough Initiatives to Search for New Exoplanets in Alpha Centauri System

Jan 10, 2017 by News Staff

The European Southern Observatory (ESO) has signed an agreement with the Breakthrough Initiatives to adapt ESO’s Very Large Telescope instrumentation...

Light and color would look different on a planet orbiting a tiny red star, like this artist’s impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our Sun. Image credit: ESO / M. Kornmesser.

Are Exoplanets Like Those in ‘Star Wars: Rogue One’ Really Out There?

Dec 21, 2016 by NASA

In the ‘Star Wars’ universe, ice, ocean and desert planets burst from the darkness as your ship drops out of light speed. But these worlds might be...

Neptune-mass planets like the one shown in this artist’s rendering may be the most common in the icy regions of planetary systems; beyond a certain distance from a young star, water and other substances remain frozen, leading to an abundant population of icy objects that can collide and form the cores of new planets; in the foreground, an icy body left over from this period drifts past the planet. Image credit: NASA’s Goddard Space Flight Center / Francis Reddy.

‘Cold Neptunes’ are Common, New Study Says

Dec 16, 2016 by News Staff

A new statistical study of exoplanets found by an innovative technique called gravitational microlensing suggests that so-called ‘cold Neptunes’ are...

ALMA image of the protoplanetary disk surrounding the young star HD 163296 as seen in dust. New observations suggested that two planets are in orbit around the star. These planets, which are not yet fully formed, revealed themselves by the dual imprint they left in both the dust and the gas portions of the star’s protoplanetary disk. Image credit: ALMA / ESO / NAOJ / NRAO / AUI / NSF / A. Isella / B. Saxton.

Evidence of Forming Giant Planets Discovered 400 Light-Years from Earth

Dec 13, 2016 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found compelling evidence that two infant planets — each about the...

In this artist’s illustration, HAT-P-7b closely orbits a star that’s 1,044 light-years from Earth. A companion star (top right) and a candidate planet (foreground) lie in the distance. Image credit: NAOJ.

Scientists Find Evidence of Weather Change on Jupiter-Like Exoplanet HAT-P-7b

Dec 12, 2016 by News Staff

Signs of powerful changing winds have been detected on an extrasolar gaseous planet called HAT-P-7b, which is 40% larger than Jupiter and orbits a star...

Composite view of L2 Puppis in visible light. Image credit: Kervella et al / CNRS / University of Chile / Observatory of Paris / LESIA / ESO / ALMA.

Massive Planet-Like Object Found Circling Nearby Red Giant Star

Dec 8, 2016 by News Staff

A team of astronomers has discovered a giant object — an enormous, Jupiter-like exoplanet or a low-mass brown dwarf — orbiting an ageing red...

This artist’s impression shows a super-Earth orbiting a red dwarf star. Image credit: NASA.

K2-3d: Ground-Based Telescope Observes Super-Earth Transiting Bright Star

Nov 28, 2016 by Enrico de Lazaro

A team of astronomers in Japan has conducted the first ground-based transit observation of K2-3d, a super-Earth within the habitable zone around a bright...

An artist’s concept of Gliese 536b orbiting its star, 33 light-years from Earth. Image credit: Gabriel Perez / Instituto de Astrofísica de Canarias.

Gliese 536b: Super-Earth Found Orbiting Nearby Star

Nov 18, 2016 by Sergio Prostak

An international team of astronomers has discovered a super-Earth planet in orbit around Gliese 536, a red dwarf star approximately 33 light-years away. An...

Artist’s impression of the dust disk and a forming Neptune-like planet around TW Hydrae. Image credit: NAOJ.

ESO’s Exoplanet Hunter Spots Curious Features in Planet-Forming Disks around Three Young Stars

Nov 9, 2016 by News Staff

New observations with SPHERE, an advanced exoplanet-hunting instrument on the Very Large Telescope at ESO’s Paranal Observatory, have revealed striking...

CSIRO’s Parkes radio telescope in New South Wales, Australia. Image credit: Shaun Amy.

Breakthrough Listen: Parkes Radio Telescope Turns to Proxima b

Nov 8, 2016 by News Staff

Breakthrough Listen, the largest ever research program aimed at finding evidence of advanced civilizations beyond Earth, today announced its first observations...

Astronomers Snap Picture of Giant Exoplanet 1,200 Light-Years Away

Oct 31, 2016 by Sergio Prostak

An international team of astronomers has discovered a giant extrasolar planet orbiting a young star called CVSO 30. Not only have the scientists detected...

This artist’s impression shows a view of the surface of Proxima b orbiting Proxima Centauri. Alpha Centauri AB also appears in the image to the upper-right of Proxima itself. Proxima b is a little more massive than the Earth and orbits in the habitable zone around its star, where the temperature is suitable for liquid water to exist on its surface. Image credit: M. Kornmesser / ESO.

Proxima b Could Be Habitable, Astrophysicists Say

Oct 28, 2016 by News Staff

An international team of astrophysicists from France and the United States has determined that the surface properties of Proxima Centauri b — an...

Artist’s conception of a binary system with a brown dwarf and a giant planet. Image credit: NASA / JPL-Caltech.

HD 87646: Astronomers Discover Bizarre ‘Binary-Binary’ System

Oct 24, 2016 by Enrico de Lazaro

A team of scientists led by University of Florida astronomer Dr. Bo Ma has discovered the first ‘binary-binary’ system — two massive companions...

Astronomers Confirm Existence of Giant Circumbinary Exoplanet 8,000 Light-Years Away

Sep 22, 2016 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have confirmed the existence of a Saturn-mass exoplanet in the binary system OGLE-2007-BLG-349L,...

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