[Article déjà publié le 29 août 2024] On July 9, 2024, Ariane 6 made its very first flight and gave Europe the opportunity to return to the forefront of the international space scene. But let's go back a little and leave the skies to go to sea and more precisely to the Atlantic Ocean. Indeed, … Read more

The West Indian manatee (Trichechus manatus) lives in the warm, shallow waters of the Caribbean and South America in general. Also called sea cow, it is the largest surviving mammal of the sirenian species. Every year, West Indian manatees undertake long migrations depending on the water temperature. Thus, the manatees move to warmer waters to … Read more

The Scarlet Piranga, a flamboyantly colored bird, caused a sensation when it appeared on a small street in Halifax, United Kingdom. This event, unusual in this region, brought together ornithology enthusiasts from all over the country. But this encounter with one of the most colorful birds in the Americas did not stop there: it transformed … Read more

[Cet article a initialement été publié le 7 mai 2024.] Since the earliest days of the invention of the train in the early 19th century, engineers and scientists have sought ways to speed up movement on the rails. The first steam trains, symbols of the industrial revolution, paved the way for an era of rail … Read more

Designed by the Ukrainian Soviet company Antonov in the 1980s, the Antonov An-225 Mriya, is the most massive aircraft ever built. With a wingspan of nearly 88 meters, a height of 18 meters and a length of more than 84 meters, this giant plane defies the laws of gravity. Its maximum take-off weight exceeds 640 … Read more

Polar vortices on Earth and in the solar system On Earth, polar vortices are well known and studied. These swirls of air masses, rotating around the poles, are formed due to the Coriolis force, a consequence of the Earth's rotation. In each hemisphere, these circular currents trap cold air around the poles, maintaining a certain … Read more

Recently, scientists discovered an amber deposit in Antarctica, calling into question our vision of this polar region nearly 90 million years ago. Published in the journal Antarctic Science, this study carried out by the Alfred Wegener Institute and the TU Bergakademie Freiberg reveals that Antarctica, now covered in ice, was once home to a temperate … Read more

If the seahorse is an exception in terms of paternity in the animal world, it is not the only species to take particular care in the education and protection of its young. Blessed bread for predators A common sea dragon can be seen in the video (Phillopteryx taeniolatus from its Latin name, or leaf seahorse), … Read more

[Article initialement publié le 10 avril 2024] One of the great flagships of French military aviation, the Dassault Rafale aircraft, stands out for its impressive speed. Equipped with a powerful engine and cutting-edge technologies, the Rafale can reach a maximum speed between Mach 1.8 and Mach 2.0, or approximately 2,222 kilometers per hour. Its agility … Read more

Thousands of kilometers away, on Earth and in space, the United States and China have launched a real war of innovation, and to respond to SpaceX, Beijing took advantage of the 15e edition of the Zhuhai air show, in Guangdon province, to unveil its anti-Starship “weapon”. This is a new version of the Long March … Read more