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Astronomy/Space Science



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Astronomy / Space Science - Physics - 14.02.2019
Earth's atmosphere stretches out to the Moon - and beyond
Earth’s atmosphere stretches out to the Moon - and beyond
The outermost part of our planet's atmosphere extends well beyond the lunar orbit - almost twice the distance to the Moon. A recent discovery based on observations by the ESA/NASA Solar and Heliospheric Observatory, SOHO, shows that the gaseous layer that wraps around Earth reaches up to 630 000 km away, or 50 times the diameter of our planet.

Astronomy / Space Science - Environment - 12.02.2019
"Better to dry a rocky planet before use"
Earth's solid surface and clement climate may be in part due to a massive star in the birth environment of the Sun. Without its radioactive elements injected into the early solar system, our home planet could be a hostile ocean world covered in global ice sheets. This is demonstrated by computer simulations in which the National Centre of Competence in Research PlanetS, based at the University of Bern, was involved.

Earth Sciences - Astronomy / Space Science - 11.02.2019
Indonesia's devastating 2018 earthquake was a rare 'supershear,' according to UCLA-led study
Indonesia’s devastating 2018 earthquake was a rare ’supershear,’ according to UCLA-led study
The devastating 7.5 magnitude earthquake that struck the Indonesian island of Sulawesi last September was a rare “supershear” earthquake, according to a study led by UCLA researchers. Only a dozen supershear quakes have been identified in the past two decades, according to Lingsen Meng, UCLA's Leon and Joanne V.C. Knopoff Professor of Physics and Geophysics and one of the report's senior authors.

Astronomy / Space Science - 08.02.2019
Opportunities on International Space Station
Opportunities on International Space Station
ESA > Our Activities > Human and Robotic Exploration > Research European research has been a part of the International Space Station since the very first expeditions to our orbiting science facility in 2001. "ESA regularly announces new research opportunities to conduct experiments that are out-of-this world.

Astronomy / Space Science - 07.02.2019
Gaia clocks new speeds for Milky Way-Andromeda collision
Gaia clocks new speeds for Milky Way-Andromeda collision
ESA's Gaia satellite has looked beyond our Galaxy and explored two nearby galaxies to reveal the stellar motions within them and how they will one day interact and collide with the Milky Way - with surprising results. Our Milky Way belongs to a large gathering of galaxies known as the Local Group and, along with the Andromeda and Triangulum galaxies - also referred to as M31 and M33, respectively - makes up the majority of the group's mass.

Astronomy / Space Science - 07.02.2019
Science on a plane - ESA's next parabolic flight campaign
Science on a plane - ESA’s next parabolic flight campaign
ESA > Our Activities > Human and Robotic Exploration > Research In May engineers, pilots, researchers and scientists will convene in Bordeaux, France, for ESA's 71st parabolic flight campaign. Over the course of three days they will fly on a specially-fitted commercial aircraft, testing equipment and running research as the pilots put the plane through repeated parabolas, giving the passengers and their experiments brief bouts of microgravity.

Astronomy / Space Science - Environment - 07.02.2019
ESA's Mars rover has a name - Rosalind Franklin
ESA’s Mars rover has a name - Rosalind Franklin
ESA > Our Activities > Human and Robotic Exploration > Exploration > ExoMars The ExoMars rover that will search for the building blocks of life on the Red Planet has a name: Rosalind Franklin.The prominent scientist behind the discovery of the structure of DNA will have her symbolic footprint on Mars in 2021.

Astronomy / Space Science - Physics - 04.02.2019
Giant impacts caused by interplanetary collisions
Giant impacts caused by interplanetary collisions
Astronomers have found fresh evidence for significant planetary diversity within a single exoplanet system, suggesting that giant high-speed collisions are partly responsible for planetary evolution. An international team of scientists led by Italy's National Institute for Astrophysics (INAF) and involving physicists from the University of Bristol spent three years observing the exoplanetary system Kepler-107 via the Telescopio Nazionale Galileo in La Palma.

Astronomy / Space Science - Life Sciences - 04.02.2019
Spotlight on Space Station science
Spotlight on Space Station science
Though all ESA astronauts are back on Earth, European science on the International Space Station is ongoing. Explore a few experiments underway right now in celebration of science at ESA. Learning the ropes Every ESA astronaut who flies to the International Space Station begins their training at the European Astronaut Centre in Cologne, Germany.

Astronomy / Space Science - Environment - 04.02.2019
Colliding Exoplanets
There are currently about 2000 confirmed exoplanets with radii less than about three Earth-radii, and measurements of their densities reveal an astonishing diversity. Some have densities lower than Neptune which is made mostly of volatiles (materials less dense than metal and rock, but Neptune has almost four times the Earth's radius), while others appear to have rock-like densities, as high as the Earth's or higher.

Environment - Astronomy / Space Science - 04.02.2019
Much of the surface ocean will shift in color by end of 21st century
Much of the surface ocean will shift in color by end of 21st century
Climate-driven changes in phytoplankton communities will intensify the blue and green regions of the world's oceans. Climate change is causing significant changes to phytoplankton in the world's oceans, and a new MIT study finds that over the coming decades these changes will affect the ocean's color, intensifying its blue regions and its green ones.

Astronomy / Space Science - Computer Science / Telecom - 01.02.2019
Stanford spurs AI navigation for space rendezvous software
A Stanford engineer is helping to develop an AI-based navigation system that would enable the space-borne equivalent of tow trucks to find and rescue satellites from so-called graveyard orbits. (Image credit: Pixabay) Stanford researchers are developing an AI-powered navigation system to direct spaceborne 'tow trucks' designed to restart or remove derelict satellites circling aimlessly in graveyard orbits.

Astronomy / Space Science - Physics - 31.01.2019
Knighthood for groundbreaking UofG astrophysicist
A pioneering University of Glasgow researcher who helped deliver the historic first detection of gravitational waves has received a knighthood in recognition of his contribution to physics and astronomy. James Hough, Research Professor in Natural Philosophy in the School of Physics and Astronomy, was made a Knight Bachelor of the British Empire by the Duke of Cambridgeduring a ceremony at Buckingham Palace today (Thursday 31 January).

Computer Science / Telecom - Astronomy / Space Science - 30.01.2019
Engineers program marine robots to take calculated risks
Algorithm could help autonomous underwater vehicles explore risky but scientifically-rewarding environments. We know far less about the Earth's oceans than we do about the surface of the moon or Mars. The sea floor is carved with expansive canyons, towering seamounts, deep trenches, and sheer cliffs, most of which are considered too dangerous or inaccessible for autonomous underwater vehicles (AUV) to navigate.

Astronomy / Space Science - 28.01.2019
Active galaxies point to new physics of cosmic expansion
Active galaxies point to new physics of cosmic expansion
Investigating the history of our cosmos with a large sample of distant 'active' galaxies observed by ESA's XMM-Newton, a team of astronomers found there might be more to the early expansion of the Universe than predicted by the standard model of cosmology. According to the leading scenario, our Universe contains only a few percent of ordinary matter.

Astronomy / Space Science - 28.01.2019
Black holes shed light on expanding Universe
Black holes shed light on expanding Universe
Scientists are using supermassive black holes to measure the expansion of the early Universe. The researchers, including our astronomers here at Durham University, think that their measurements show the Universe might be growing more rapidly than previously thought. Supermassive black holes give off radiation as they feed and are some of the brightest points of light in space.

Physics - Astronomy / Space Science - 24.01.2019
How to Escape a Black Hole: Simulations Provide New Clues to What's Driving Powerful Plasma Jets
How to Escape a Black Hole: Simulations Provide New Clues to What’s Driving Powerful Plasma Jets
Black holes are known for their voracious appetites, binging on matter with such ferocity that not even light can escape once it's swallowed up. Less understood, though, is how black holes purge energy locked up in their rotation, jetting near-light-speed plasmas into space to opposite sides in one of the most powerful displays in the universe.

Astronomy / Space Science - Physics - 24.01.2019
When Black Holes Collide
When Black Holes Collide
One of the most cataclysmic events to occur in the cosmos involves the collision of two black holes. Formed from the deathly collapse of massive stars, black holes are incredibly compact-a person standing near a stellar-mass black hole would feel gravity about a trillion times more strongly than they would on Earth.

Astronomy / Space Science - Physics - 22.01.2019
Seeing double could help resolve dispute about how fast the universe is expanding
Seeing double could help resolve dispute about how fast the universe is expanding
Science + Technology Team led by two UCLA astronomers uses split images of quasars to produce a new estimate of the Hubble constant Christopher Crockett The question of how quickly the universe is expanding has been bugging astronomers for almost a century. Different studies keep coming up with different answers — which has some researchers wondering if they've overlooked a key mechanism in the machinery that drives the cosmos.

Astronomy / Space Science - 21.01.2019
Mystery orbits in outermost reaches of solar system not caused by 'Planet Nine', say researchers
Mystery orbits in outermost reaches of solar system not caused by ’Planet Nine’, say researchers
The strange orbits of some objects in the farthest reaches of our solar system, hypothesised by some astronomers to be shaped by an unknown ninth planet, can instead be explained by the combined gravitational force of small objects orbiting the Sun beyond Neptune, say researchers.