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Results 21 - 40 of 2103.


Astronomy / Space Science - 29.06.2021
The odd couple: a groundbreaking new discovery from gravitational whispers
Two gravitational wave signals from an entirely new class of cosmic collisions have been discovered by researchers working on the Advanced LIGO and Advanced Virgo detectors. Each of the signals came from the merger of a black hole with a neutron star. The first signal was first detected on January 5 2020.

Astronomy / Space Science - Physics - 29.06.2021
First detection of gravitational waves from black holes swallowing neutron stars
For the first time, scientists have picked up the ripples in space-time caused by the death spiral of a neutron star and a black hole. University of Glasgow researchers played a key role in the international collaboration that made the detection possible. They contributed to the design of the detectors - the most sensitive scientific instruments ever built - and the advanced data analysis needed to provide an astrophysical interpretation of the signals.

Astronomy / Space Science - Physics - 29.06.2021
The final dance of mixed neutron star-black hole pairs
The final dance of mixed neutron star-black hole pairs
Gravitational wave detectors have observed a new type of cataclysmic event in the cosmos: the merger of a neutron star with a black hole. The phenomenon was detected twice in January 2020. Several hypotheses could explain the existence of such mixed pairs. Further observations will be needed in order to settle the question.  Another missing piece has just been added to our knowledge of cosmic phenomena.

Computer Science - Astronomy / Space Science - 29.06.2021
Artificial Intelligence pioneered at Oxford to detect floods launches into space | University of Oxford
Artificial Intelligence pioneered at Oxford to detect floods launches into space | University of Oxford
A new technology, developed by Oxford researchers, in partnership with the European Space Agency's (ESA) -lab, will pilot the detection of flood events from space. It was deployed on hardware on D'Orbit's upcoming 'Wild Ride' mission being launched by SpaceX's Falcon 9 from Cape Canaveral, 30 June, 20.00 UK time.

Astronomy / Space Science - 29.06.2021
Black holes swallow neutron stars like 'Pac-Man'
Black holes swallow neutron stars like ’Pac-Man’
Scientists have for the first time detected black holes eating neutron stars, "like Pac Man", in a discovery documenting the collision of the two most extreme and enigmatic objects in the Universe. The collisions occurred one billion years ago.  The Laser Interferometer Gravitational-Wave Observatory (LIGO) in the US and the Virgo gravitational-wave observatory in Italy have captured the gravitational waves from the death spiral and merger of a neutron star with a black hole, not once but twice.

Astronomy / Space Science - Physics - 29.06.2021
Black hole and neutron star merger detected for first time
Black hole and neutron star merger detected for first time
Scientists have, for the first time, picked up the ripples in space-time caused by the collision of a neutron star and a black hole. Two instances of this violent cosmic event have been detected using the Advanced LIGO and Virgo gravitational wave detectors, details of which have been published today in Astrophysical Journal Letters.

Astronomy / Space Science - Physics - 29.06.2021
LIGO-Virgo-KAGRA finds elusive mergers of black holes with neutron stars
For the first time, researchers have confirmed the detection of a collision between a black hole and a neutron star. In fact, the scientists detected not one but two such events occurring just 10 days apart in January 2020. The extreme events made splashes in space that sent gravitational waves rippling across at least 900 million light-years to reach Earth.

Astronomy / Space Science - Physics - 28.06.2021
The Hubble constant, explained
The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It gets its name from UChicago alum Edwin Hubble, who was first to calculate the constant from his measurements of stars in 1929.

Astronomy / Space Science - Economics / Business - 28.06.2021
Unique exoplanet photobombs CHEOPS study of nearby star system
Unique exoplanet photobombs CHEOPS study of nearby star system
While studying two exoplanets in a bright nearby star system, the CHEOPS satellite has unexpectedly spotted the system's third known planet crossing the face of the star. This transit reveals exciting details about a rare planet -with no known equivalent-, as the scientific team led by the Universities of Geneva and Bern, and members of the National Center of Competence in Research PlanetS, point out.

Astronomy / Space Science - Physics - 28.06.2021
Stellar explosion in 1054 C.E. may have been a third flavor of supernova
Stellar explosion in 1054 C.E. may have been a third flavor of supernova
Astronomers have found convincing evidence that supernovae come in a third flavor, powered by a long-suspected explosive mechanism that may explain a bright supernova humans observed 1,000 ago and that birthed the beautiful Crab Nebula. The evidence is an exploding star observed in 2018, the first that fits all six criteria for a hypothesized type of supernova called an electron-capture supernova.

Astronomy / Space Science - Physics - 25.06.2021
Could dark matter be behind mysterious, supermassive black holes in the early universe’
UChicago, UC Riverside scientists offer theory to explain the origin of monsters of the cosmos When astronomers use telescopes to look back in time-toward objects in the universe whose light is only now reaching earth after billions of years-they see something odd. Black holes, big ones, that already existed when the universe was still very young.

Computer Science - Astronomy / Space Science - 23.06.2021
New Algorithm Helps Autonomous Vehicles Find Themselves, Summer or Winter
Deep learning makes visual terrain-relative navigation more practical Without GPS, autonomous systems get lost easily. Now a new algorithm developed at Caltech allows autonomous systems to recognize where they are simply by looking at the terrain around them-and for the first time, the technology works regardless of seasonal changes to that terrain.

Astronomy / Space Science - Physics - 22.06.2021
Nightside radio could help reveal exoplanet details
Nightside radio could help reveal exoplanet details
Rice team enhances models that will detect magnetospheres in distant solar systems We can't detect them yet, but radio signals from distant solar systems could provide valuable information about the characteristics of their planets. A paper by Rice scientists describes a way to better determine which exoplanets are most likely to produce detectable signals based on magnetosphere activity on exoplanets' previously discounted nightsides.

Earth Sciences - Astronomy / Space Science - 21.06.2021
NASA Balloon Detects California Earthquake - Next Stop, Venus’
The technique is being developed to detect venusquakes. A new study details how, in 2019, it made the first balloon-borne detection of a quake much closer to home. Between July 4 and July 6, 2019, a sequence of powerful earthquakes rumbled near Ridgecrest, California, triggering more than 10,000 aftershocks over a six-week period.

Astronomy / Space Science - Physics - 20.06.2021
What the Muon g-2 results mean for how we understand the universe
Experiment opens up field for new physics, say Fermilab, UChicago scientists The news that muons have a little extra wiggle in their step sent word buzzing around the world this spring.  The Muon g-2 experiment hosted at Fermi National Accelerator Laboratory  announced April 7  that they had measured a particle called a muon behaving slightly differently than predicted in their giant accelerator.

Astronomy / Space Science - Environment - 18.06.2021
Scientists detect signatures of life remotely
Scientists detect signatures of life remotely
It could be a milestone on the path to detecting life on other planets: Scientists under the leadership of the University of Bern and of the National Centre of Competence in Research (NCCR) PlanetS detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground.

Astronomy / Space Science - Physics - 16.06.2021
Scrambled magnetic fields and Gamma-Ray Bursts: Space scientists solve a decades-long puzzle
Scrambled magnetic fields and Gamma-Ray Bursts: Space scientists solve a decades-long puzzle
Bath astrophysicists find the magnetic field in Gamma-Ray Bursts is scrambled after the ejected material crashes into, and shocks, the surrounding medium. Last updated on Friday 18 June 2021 An international team of scientists, led by astrophysicists from the University of Bath, has measured the magnetic field in a far-off Gamma-Ray Burst, confirming for the first time a decades-long theoretical prediction - that the magnetic field in these blast waves becomes scrambled after the ejected material crashes into, and shocks, the surrounding medium.

Astronomy / Space Science - Physics - 14.06.2021
Dark matter is slowing the spin of the Milky Way's galactic bar
Dark matter is slowing the spin of the Milky Way’s galactic bar
The spin of the Milky Way's galactic bar, which is made up of billions of clustered stars, has slowed by about a quarter since its formation, according to a new study by UCL and University of Oxford researchers. For 30 years, astrophysicists have predicted such a slowdown, but this is the first time it has been measured.

Astronomy / Space Science - 11.06.2021
Astronomers spot a 'blinking giant' near the centre of the Galaxy
Astronomers spot a ’blinking giant’ near the centre of the Galaxy
Astronomers have spotted a giant 'blinking' star towards the centre of the Milky Way, more than 25,000 light years away. There are certainly more to be found, but the challenge now is in figuring out what the hidden companions are, and how they came to be surrounded by discs, despite orbiting so far from the giant star Leigh Smith An international team of astronomers observed the star, VVV-WIT-08, decreasing in brightness by a factor of 30, so that it nearly disappeared from the sky.

Astronomy / Space Science - Physics - 11.06.2021
French ESA astronaut Thomas Pesquet to continue experiments on foams
French ESA astronaut Thomas Pesquet to continue experiments on foams
Studying how liquid foams evolve over time is difficult, if not impossible, on Earth because of gravity. The FOAM-C experiment, which began in 2020, was designed to study liquid foams in zero gravity on board the ISS. New samples will be set up by French astronaut Thomas Pesquet on Friday, June 11. The FOAM-C experiment studies the properties of liquid foams in zero gravity.