Thousands of space debris are present in low orbit. On the ground, scientists calculate their trajectory in order to avoid possible collisions. While usually these calculations are possible only for a few hours of the night, researchers have developed a technique to observe the debris during the da

In the incredibly distant future, the explosion of a still hypothetical object could well seal the fate of our Universe. The Big Freeze is one of the possible fates of the universe. The laws of physics as we know them suggest that in the very distant future, no more stars can be formed. The galaxie

This Sunday, a car-sized asteroid slammed into Earth less than 3,000 kilometers away. Astronomers didnt notice its existence until six hours later. This Sunday, a large rock 5.5 meters wide by two meters long approached within 2950 kilometers of Earth, spinning at more than 44,000 km/h over the sou

A small air leak spotted in the ISS forces astronauts to spend the weekend in the Russian segment of the station. Time for NASA to find the source of the problem. Expedition 63 crew members are not in immediate danger. Truth be told, this small leak was first spotted in September 2019. Still, the a

Blue Origin, Jeff Bezos spaceflight company, has just offered NASA a full-scale model of its future lander. The project could be selected by the space agency to transport astronauts to the Moon in 2024. Last May NASA announced that it had awarded three contracts to begin development of lunar landin

359 million years ago, the explosion of one or more nearby stars in a supernova may have led to the extinction of more than 90% of the terrestrial life according to a study. At the end of the Devonian period, the seas were filled with enormous creatures, some the size of a school bus. Then, a parti

Over the weekend, the excitement was palpable in the United States, especially in the media. And for good reason, there is talk of an asteroid that would be able to enter our atmosphere on November 2, 2020. However, this date is none other than the eve of the presidential elections across the Atlant

Citizen researchers recently led to the discovery of nearly a hundred new brown dwarfs. Most of them, very cold, evolve only a few tens of light-years from the Sun. In 2018, NASA launched a new site dedicated to the detection of objects at the edge of the Solar System. The project, called Backyard

Fifty planets have been confirmed by a new machine learning algorithm. Developed by researchers at the University of Warwick, this method could in the future maximize the number of discoveries. To hunt exoplanets, telescopes rely on the transit method of detecting small and regular dips in stellar

Bacteria of the genus Deinococcus have officially survived three years in the vacuum of space. In theory, according to the researchers, they could therefore survive a trip between Earth and Mars. Seeds of life in the Universe The panspermia theory supports the possibility that microbes can migrate

The Chinese National Space Agency has just operated several instruments of the Tianwen-1 mission in the vacuum of space. The spacecraft, en route to Mars, is also preparing for its second trajectory correction maneuver. On July 28, China launched with its Tianwen-1 mission from the base of Wenchang

NASA teams have just passed a critical test to demonstrate that the James Webb Space Telescope will respond to commands once in space. A priori, nothing (or almost) could once again delay its launch in October 2021. When sending a probe, satellite or telescope into space, communication is key. Inde

A study suggests that wandering planets may outnumber stars in the galaxy. A future NASA mission could help to lift the veil on these solitary objects. Finding an exoplanet is no small feat. And for good reason, these worlds do not give off any light. Also, to detect their presence, astronomers gen

When it was created a few years ago, airbrushite was the lightest material in the world. Characterized by a very low density, it has other very interesting features. According to astronomers, aerographite appears to be ideal for the design of photonic sails fitted to a probe that can easily leave ou

The spacecraft carrying the Perseverance rover, en route to Mars, experienced technical difficulties as it passed through Earths shadow, forcing it to pass in safe mode. NASA still wants to be reassuring. Did Mars ever harbor extraterrestrial life? This is the question that the Perseverance rover w

A strange incredibly long and thin cloud has appeared on Mars again, above the 20 km high shield volcano Arsia Mons. If the researchers expected it, the details of its formation still remain very mysterious. No, this is not a plume of smoke indicating any volcanic activity. It is actually a cloud m

A new biomaterial designed by American researchers could ultimately protect astronauts from harmful radiation during Mars missions. A very inhospitable environment Leaving aside the technical challenges inherent in a manned trip to Mars, there are inevitably radiation issues. The main examples are

Chinas Tianwen-1 mission, currently en route to the planet Mars, has captured an image of Earth and the Moon, seen at around 1.2 million km away. On July 23, China launched its long-awaited Tianwen-1 mission. Its objective:to place an orbiter around the planet Mars and deploy a rover on the surface

During its minimum two-year journey on Mars, the American rover Perseverance will have to face difficult weather conditions that will deprive it of solar energy. This is why NASA turned to radioactive plutonium. NASA has just successfully launched its long-awaited Mars 2020 mission, whose objective

Two young Indian women have made an exceptional discovery as part of a project in partnership with NASA. The duo shed light on a new asteroid heading towards our planet. However, no need to worry since the object will not risk hitting the Earth for a very long time. An asteroid orbiting Mars Vekari