
Copernical Team
Astronomers calculate genesis of Oort cloud in chronological order
![Artist's impression of the Oort cloud. The density has been exaggerated. Credit: Pablo Carlos Budassi [CC BY-SA 4.0] via Wikimedia Astronomers calculate genesis of Oort cloud in chronologically order](https://scx1.b-cdn.net/csz/news/800a/2021/astronomers-calculate.jpg)
A team of Leiden astronomers has managed to calculate the first 100 million years of the history of the Oort cloud in its entirety. Until now, only parts of the history had been studied separately. The cloud, with roughly 100 billion comet-like objects, forms an enormous shell at the edge of our solar system. The astronomers will soon publish their comprehensive simulation and its consequences in the journal Astronomy & Astrophysics.
The Oort cloud was discovered in 1950 by the Dutch astronomer Jan Hendrik Oort to explain why there continue to be new comets with elongated orbits in our solar system. The cloud, which starts at more than 3000 times the distance between the Earth and the Sun, should not be confused with the Kuiper belt.
The Incredible Adventures of the Hera mission - Presenting Hera

NASA announces two new missions to Venus

Government fund will support new ideas for cleaning up space

Worms on a mission to research muscle loss in space

TMC Technologies wins contract to support NASA's IV&V Program

Galileo satellites’ last step before launch

Europe’s Galileo satellite navigation constellation is set to grow. Later this year the first two out of 12 ‘Batch 3’ Galileo satellites will be launched by Soyuz from French Guiana. Their last step on the way to launch is situated beside sand dunes on the Dutch coast: the ESTEC Test Centre, which is Europe’s largest satellite test facility.
NASA picks Venus as hot spot for two new robotic missions

NASA is returning to sizzling Venus, our closest yet perhaps most overlooked neighbor, after decades of exploring other worlds.
The space agency's new administrator, Bill Nelson, announced two new robotic missions to the solar system's hottest planet, during his first major address to employees Wednesday.
NASA to explore divergent fate of Earth's mysterious twin with Goddard's DAVINCI+

NASA selects 2 missions to study Venus
