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'Are we alone?' Study refines which exoplanets are potentially habitable
Researchers are first to combine 3D climate modeling with atmospheric chemistry to explore the habitability of planets around M dwarf stars, which comprise about 70% of the total galactic population. (2019-11-14)
The most spectacular celestial vision you'll never see
Contrary to previous thought, a gigantic planet in wild orbit does not preclude the presence of an Earth-like planet in the same solar system - or life on that planet. (2019-11-05)
NASA's TESS presents panorama of southern sky
The glow of the Milky Way -- our galaxy seen edgewise -- arcs across a sea of stars in a new mosaic of the southern sky produced from a year of observations by NASA's Transiting Exoplanet Survey Satellite (TESS). (2019-11-05)
Worldwide observations confirm nearby 'lensing' exoplanet
Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing. (2019-11-01)
Simulations explain giant exoplanets with eccentric, close-in orbits
As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star. (2019-10-30)
What makes the Earth's surface move?
Do tectonic plates move because of motion in the Earth's mantle, or is the mantle driven by the plates' movement? (2019-10-30)
Numerous polar storms on Saturn analyzed by the UPV/EHU's Planetary Sciences Group
Nature Astronomy has published the results of the research conducted by the Planetary Sciences Group at the UPV/EHU-University of the Basque Country; the group is led by Professor Agustín Sánchez-Lavega and their research deals with the monitoring they carried out on a series of huge, long-lived storms that took place on the planet Saturn. (2019-10-29)
The composition of species is changing in ecosystems across the globe
While the identities of species in local assemblages are undergoing significant changes, their average number is relatively constant. (2019-10-17)
Ancient stars shed light on Earth's similarities to other planets
Earth-like planets may be common in the universe, a new UCLA study implies. (2019-10-17)
Exoplanet interiors have Earth-like geochemistry
The interiors of some exoplanets have Earth-like geochemistry, according to a new study, which finds that extrasolar rocks share similar levels of oxidation, or oxygen fugacity, to those in the solar system. (2019-10-17)
Cascades of gas around young star indicate early stages of planet formation
What does a gestating baby planet look like? New research in Nature by a team including Carnegie's Jaehan Bae investigated the effects of three planets in the process of forming around a young star, revealing the source of their atmospheres. (2019-10-16)
Gas 'waterfalls' reveal infant planets around young star
For the first time, astronomers using ALMA have witnessed 3D motions of gas in a planet-forming disk. (2019-10-16)
Liquifying a rocky exoplanet
A hot, molten Earth would be around 5% larger than its solid counterpart. (2019-10-09)
Saturn surpasses Jupiter after the discovery of 20 new moons
Move over Jupiter; Saturn is the new moon king. A team led by Carnegie's Scott S. (2019-10-07)
Giant exoplanet around tiny star challenges understanding of how planets form
An international team of researchers with participation from the University of Göttingen has discovered the first large gas giant orbiting a small star. (2019-09-27)
Many gas giant exoplanets waiting to be discovered
There is an as-yet-unseen population of Jupiter-like planets orbiting nearby Sun-like stars, awaiting discovery by future missions like NASA's WFIRST space telescope, according to new models of gas giant planet formation by Carnegie's Alan Boss, described in an upcoming publication in The Astrophysical Journal. (2019-09-27)
Massive exoplanet orbiting tiny star challenges planet formation theory
Astronomers have discovered a giant Jupiter-like exoplanet in an unlikely location -- orbiting a small red dwarf star. (2019-09-26)
A planet that should not exist
Astronomers detected a giant planet orbiting a small star. The planet has much more mass than theoretical models predict. (2019-09-26)
Nature documentaries increasingly talk about threats to nature, but still don't show them
Researchers analyzing recent BBC and Netflix nature documentaries found that although they increasingly mention threats to nature, visual depictions of these threats remain scarce, potentially misleading audiences on the state of the natural world. (2019-09-17)
Saturn's rings shine in Hubble's latest portrait
Saturn is so beautiful that astronomers cannot resist using the Hubble Space Telescope to take yearly snapshots of the ringed world when it is at its closest distance to Earth. (2019-09-12)
Hubble reveals latest portrait of Saturn
The NASA/ESA Hubble Space Telescope's Wide Field Camera 3 observed Saturn on 20 June 2019 as the planet made its closest approach to Earth this year, at approximately 1.36 billion kilometres away. (2019-09-12)
Water detected on an exoplanet located in its star's habitable zone
An international study lead by UdeM astronomer Björn Benneke has detected water vapor on the planet K2-18b; this represents a major discovery in the search of alien life. (2019-09-11)
NASA's Hubble finds water vapor on habitable-zone exoplanet for 1st time
With data from the Hubble Space Telescope, water vapor has been detected in the atmosphere of a super-Earth with habitable temperatures. (2019-09-11)
A Goldilocks zone for planet size
Harvard University researchers described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low-gravity planets. (2019-09-11)
Rocks at asteroid impact site record first day of dinosaur extinction
The research centers on the asteroid impact that wiped out non-avian dinosaurs, with the researchers getting the most detailed look yet of the aftermath that followed by examining the rocks and debris that filled the crater within the first 24 hours after impact. (2019-09-09)
Planetary collisions can drop the internal pressures in planets
A new study finds that collisions between planetary bodies, such as the event that created Earth's moon, could abruptly drop the planet's internal pressure. (2019-09-04)
Humans were changing the environment much earlier than believed
New research, which assessed global land use from 10,000 to 170 years ago, reveals that hunter-gatherers, farmers and pastoralists had made significant alterations to the planet by 4,000 years ago, much earlier than indicated by Earth scientists' previous land-use reconstructions. (2019-08-29)
Hints of a volcanically active exomoon
A rocky extrasolar moon (exomoon) with bubbling lava may orbit a planet 550 light-years away from us. (2019-08-29)
Canadian astronomers determine Earth's fingerprint
Two McGill University astronomers have assembled a 'fingerprint' for Earth, which could be used to identify a planet beyond our Solar System capable of supporting life. (2019-08-28)
Newly discovered giant planet slingshots around its star
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. (2019-08-27)
Physicists mash quantum and gravity and find time, but not as we know it
A University of Queensland-led international team of researchers say they have discovered ''a new kind of quantum time order''. (2019-08-25)
In a quantum future, which starship destroys the other?
Quantum mechanics boasts all sorts of strange features, one being quantum superposition -- the peculiar circumstance in which particles seem to be in two or more places or states at once. (2019-08-22)
Storms on Jupiter are disturbing the planet's colorful belts
Coordinated observations of Jupiter in early 2017 by six ground-based telescopes and Hubble allowed UC Berkeley astronomers to study the evolution of bright plumes and connect them with cloud movements deep in the planet. (2019-08-22)
Climate change will alter waves along half the world's coast
New research finds that a warming planet will also alter ocean waves along more than 50% of the world's coastlines. (2019-08-22)
A second planet in the Beta Pictoris system
A team of astronomers led by Anne-Marie Lagrange, a CNRS researcher, has discovered a second giant planet in orbit around β Pictoris, a star that is relatively young (23 million years old) and close (63.4 light years), and surrounded by a disk of dust. (2019-08-19)
Young Jupiter was smacked head-on by massive newborn planet
A colossal, head-on collision between Jupiter and a still-forming planet in the early solar system, about 4.5 billion years ago, could explain surprising readings from NASA's Juno spacecraft, according to a study this week in the journal Nature. (2019-08-15)
How many Earth-like planets are around sun-like stars?
A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our Sun. (2019-08-14)
James Webb Space Telescope could begin learning about TRAPPIST-1 atmospheres in a year
New research from astronomers at the University of Washington uses the intriguing TRAPPIST-1 planetary system as a kind of laboratory to model not the planets themselves, but how the coming James Webb Space Telescope might detect and study their atmospheres, on the path toward looking for life beyond Earth. (2019-08-13)
A new timeline of Earth's cataclysmic past
Recent research shows that our planet may have been pummeled with asteroids long before some scientists had previously thought. (2019-08-12)
Methane not released by wind on Mars, experts find
New study rules out wind erosion as the source of methane gas on Mars and moves a step closer to answering the question of whether life exists on other planets. (2019-08-12)
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