SpaceX Starlink launch & Falcon 9 first stage landing, 29 January 2020

WASHINGTON - SpaceX completed its second Starlink launch in January 29, according to a target rate that the company set last year to launch two dedicated Starlink missions each month throughout 2020. SpaceX has said it will test its satellites around this low altitude, where it expects any failure...

How can gravitational waves help us to understand the universe ?

The discovery of gravitational waves opens a new era for astronomy and our understanding of the universe. But how ?. In the beginning, there was light: the sky that we observe with the naked eye or with the first glasses, the astronomy of the visible. The discovery of electromagnetic waves at...

China launches satellite that can photograph every metre of ground

TAIYUAN, Jan. 15 (Xinhua) - China on Wednesday placed a new optical remote sensing satellite for commercial use in its planned orbit from the Taiyuan Satellite Launch Center in northern China's Shanxi Province. The satellite, belonging to the Jilin-1 family of satellites and also bearing the...

Stephen Hawking : humanity must prepare to become interstellar

Faced with the great crises awaiting humanity, Stephen Hawking reiterated during an intervention in Beijing the urgency of preparing for the interstellar journey. According to him, we have half a millennium: “by 2600, the Earth will turn into a big ball of fire.  Last Year during a...

Artificial intelligence lights up black hole fusion

A simulation using an artificial intelligence algorithm succeeds in predicting the characteristics of the fusion of two black holes. Nearly five years after the discovery of the first gravitational wave in September 2015, a team from the Center for Theoretical Astrophysics of the California...

Does the merge of black holes lead to a loss of information?

In 1976, following his work on black holes, Stephen Hawking raises a paradox: according to general relativity, the information absorbed by a black hole is lost when it evaporates. However, the laws of quantum mechanics impose a conservation of information. In the same way, when two black holes merge,...

Major discovery on the Big Bang

Scientists who were looking for means of propulsion for rockets and planes have discovered how supernovas explode, relays "L'Express". Funded by the United States military, scientists found, somewhat by accident, the beginnings of an explanation. By looking for new means of propulsion for planes...

A neutron star sought for 30 years finally discovered

Cardiff University scientists would have found this star hidden for several years behind a cloud of dust, reveals "The Independent" For thirty years, scientists around the world have relentlessly tracked her down. A neutron star is said to have been found by researchers at Cardiff University,...

A new class of black holes discovered

Thanks to an innovative method, researchers may have detected a "low mass" black hole Some 104 years after Albert Einstein's theory of general relativity, a team of researchers may have made a major discovery about the existence of black holes. In developing a "new way" to detect them, the...

Discovery of a first planet orbiting a white dwarf

At least one exoplanet has been able to survive the violent transitions that a solar-type star experiences during its lifetime, to the final stage. In several billion years, when the Sun has swollen to the point of encompassing the orbit of Mars, or even that of Earth, becoming a giant red,...

Cheops: a mission to shed light on exoplanets

The Swiss-European satellite should bring exoplanetology into a new era. That of the study of exoplanets that Cheops is about to measure. Since the discovery of the first exoplanet 51 Pegasi b by the Swiss Michel Mayor and Didier Queloz, Nobel Prize in physics 2019 for this discovery, the list...

Three central black holes in the heart of a single galaxy

This new discovery could help explain how the largest galaxies in the Universe were able to form so quickly. Astronomers have discovered three supermassive black holes at the heart of a single galaxy. Thanks to the Muse instrument equipping the Very Large Telescope based in Chile, an international...

Nasa: discovery of a new planet that could harbor life

If you ask astronomers how many planets in the universe harbor life, they will likely say there are only two possible answers: one or infinity. We can rule out zero, thanks to the decidedly alive Earth, which means that so far one is the answer. But if we discover another, the answer jumps straight...

The planet Mars is losing water faster and faster

Contrary to what had been established, the precious liquid present in the form of ice evaporates faster than expected The question torments all astronomers around the world. Will humans find water on Mars if they ever manage to set foot on its soil? If scientists knew that the precious liquid had...

Two habitable super-Earths discovered around nearby stars

Two recently detected exoplanets, named GJ229Ac and GJ180d, will constitute new prime targets for the search for life. You probably won't remember their name, but astronomers are not going to forget them. The two exoplanets that researchers at the Carnegie Institution have just discovered have remarkable...

SpaceX: last successful test before sending a manned flight to the International space station

Elon Musk's space company successfully simulated, at the Kennedy Center in Florida, the emergency ejection of astronauts from a rocket. It was the last step before I could send a manned flight to the International Space Station. On Sunday January 19, SpaceX successfully simulated the emergency...