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Results 1 - 14 of 14.


Astronomy / Space - Computer Science - 19.11.2020
Machine learning: a breakthrough in the study of stellar nurseries
Machine learning: a breakthrough in the study of stellar nurseries
Artificial intelligence can make it possible to see astrophysical phenomena that were previously beyond reach. This has now been demonstrated by scientists from the CNRS, IRAM, Observatoire de Paris-PSL, Ecole Centrale Marseille and Ecole Centrale Lille, working together in the ORION-B 1 programme. In a series of three papers published in Astronomy & Astrophysics on 19 November 2020, they present the most comprehensive observations yet carried out of one of the star-forming regions closest to the Earth.

Astronomy / Space - Physics - 06.11.2020
Has the hidden matter of the Universe been discovered?
Has the hidden matter of the Universe been discovered?
Astrophysicists consider that around 40% of the ordinary matter that makes up stars, planets and galaxies remains undetected, concealed in the form of a hot gas in the complexe cosmic web. Today, scientists at the Institut d'Astrophysique Spatiale (CNRS/Université Paris-Saclay) may have detected, for the first time, this hidden matter through an innovative statistical analysis of 20-year-old data.

Astronomy / Space - 27.10.2020
Surprisingly mature galaxies in the early Universe
Surprisingly mature galaxies in the early Universe
When the Universe was only a tenth of its current age its galaxies experienced a growth spurt.  It was this period that the scientists in the ALPINE project 1 focused on when they used ESO's ALMA 2 telescope to carry out the first ever large survey of distant galaxies. To their surprise, these galaxies observed in the early stages of their life were far more mature than expected.

Astronomy / Space - Physics - 02.09.2020
New populations of black holes revealed by gravitational waves
New populations of black holes revealed by gravitational waves
The gravitational wave 1 detectors LIGO and Virgo have just chalked up their biggest catch yet, a black hole 142 times the mass of the Sun, resulting from the merger of two black holes of 85 and 66 solar masses.  The remnant black hole is the most massive ever observed with gravitational waves, and it could give us some clues about the formation of the supermassive black holes that sit at the centres of some galaxies.

Astronomy / Space - Environment - 05.08.2020
Ammonia-rich hail sheds new light on Jupiter's weather
Ammonia-rich hail sheds new light on Jupiter’s weather
New Juno results suggest that the violent thunderstorms taking place in Jupiter's atmosphere may form ammonia-rich hail, or 'mushballs', that play a key role in the planet's atmospheric dynamics. This theory, developed using data from Juno's microwave radiometer by the Juno team, is described in two publications led by a researcher at the Laboratoire Lagrange (CNRS/Observatoire de la Côte d'Azur/Université Côte d'Azur) with support from the CNES.

Astronomy / Space - 02.07.2020
Unprecedented ground-based discovery of two strongly interacting exoplanets
Unprecedented ground-based discovery of two strongly interacting exoplanets
Several interacting exoplanets have already been spotted by satellites. But a new breakthrough has been achieved with, for the first time, the detection directly from the ground of an extrasolar system of this type.  An international collaboration including CNRS researchers 1 has discovered an unusual planetary system, dubbed WASP-148, using the French instrument SOPHIE at the Observatoire de Haute-Provence (CNRS/Aix-Marseille Université) .

Astronomy / Space - 17.06.2020
Quasar jets are particle accelerators thousands of light-years long
Quasar jets are particle accelerators thousands of light-years long
An international collaboration bringing together over 200 scientists from 13 countries has shown that the very high-energy gamma-ray emission from quasars, galaxies with a highly energetic nucleus, is not concentrated in the region close to their central black hole but in fact extends over several thousand light-years along jets of plasma.

Earth Sciences - Astronomy / Space - 18.05.2020
Mars: where mud flows like lava
Mars: where mud flows like lava
The surface of the planet Mars bears probable traces of -sedimentary volcanism-, a geological phenomenon that leads to the eruption of mud from underground. But how does a mixture of sediment and water behave in the open air on the Red Planet? Conditions there are extremely different from those on Earth - atmospheric pressure is 150 times lower and temperatures are generally negative.

Astronomy / Space - 23.04.2020
New discovery: first asteroid population from outside our solar system
New discovery: first asteroid population from outside our solar system
Ka`epaoka`awela asteroid 1 surprised the world in 2018: it was the first object in the solar system that was demonstrated to be of extrasolar origin. But now those who discovered it have announced that it is not alone. Published in MNRAS on 23 April 2020, work by Fathi Namouni, a CNRS researcher in the Laboratoire Lagrange (CNRS/Observatoire de la Côte d'Azur/Université Côte d'Azur), and Helena Morais, researcher at UNESP in Brazil, proves that at least 19 other asteroids orbited another star before joining our system.

Physics - Astronomy / Space - 15.04.2020
Where did the antimatter go? Neutrinos shed promising new light
Where did the antimatter go? Neutrinos shed promising new light
We live in a world of matter - because matter overtook antimatter , though they were both created in equal amounts by the Big Bang when our universe began. As featured on the cover of Nature on 16 April 2020, neutrinos and the associated antimatter particles, antineutrinos, are reported to have a high likelihood of differing behaviour that offers a promising path to explaining the asymmetry between matter and antimatter.

Astronomy / Space - 25.02.2020
A Year of Surprising Science From NASA’s InSight Mars Mission
A new comprehension of Mars is emerging based on the first year of NASA's InSight mission. Results described in a set of six papers published today, five and one in Nature Communications , reveal a living planet that is the scene of earthquakes, dust devils and strange magnetic impulses.

Astronomy / Space - Chemistry - 14.02.2020
Mandy Bethkenhagen receives a Marie Sk odowska-Curie European fellowship
Mandy Bethkenhagen receives a Marie Sk odowska-Curie European fellowship
The Marie Sk?odowska-Curie actions support researchers at all stages of their careers, regardless of age and nationality. Researchers working across all disciplines are eligible for funding. The MSCA also support cooperation between industry and academia and innovative training to enhance employability and career development.

Astronomy / Space - 09.01.2020
Mars: water could disappear faster than expected
Mars: water could disappear faster than expected
The small red planet is losing water more quickly than what theory as well as past observations would suggest. The gradual disappearance of water (H2O) occurs in the upper atmosphere of Mars: sunlight and chemistry disassociate water molecules into hydrogen and oxygen atoms that the weak gravity of Mars cannot prevent from escaping into space.

Astronomy / Space - 09.01.2020
Mars: water could disappear faster than expected
Mars: water could disappear faster than expected
The small red planet is losing water more quickly than what theory as well as past observations would suggest. The gradual disappearance of water (H2O) occurs in the upper atmosphere of Mars: sunlight and chemistry disassociate water molecules into hydrogen and oxygen atoms that the weak gravity of Mars cannot prevent from escaping into space.