Astronomers calculate genesis of Oort cloud in chronological order
Thursday, 03 June 2021 10:45![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.
Launcher raises $11.7 million Series A round
Thursday, 03 June 2021 10:27
WASHINGTON — Small launch vehicle developer Launcher has raised $11.7 million in a Series A funding round, which the company says puts it on a path to reaching orbit with a fraction of the total investment of other launch startups.
Galileo satellites’ last step before launch
Thursday, 03 June 2021 10:04
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.
Axiom Space purchases three Crew Dragon missions
Thursday, 03 June 2021 09:46
WASHINGTON — Axiom Space has signed a contract with SpaceX for three additional Crew Dragon missions, enough to meet its projections for private astronaut missions to the International Space Station through at least 2023.
Axiom, which already has a deal with SpaceX for the Ax-1 mission to the ISS launching in early 2022, said June 2 the new contract covers the projected Ax-2, 3 and 4 missions to the station.
China launches Fengyun-4B meteorological satellite
Thursday, 03 June 2021 09:40
HELSINKI — China successfully sent the Fengyun-4B weather satellite into geosynchronous transfer orbit Wednesday with the country’s 16th orbital launch of 2021.
TMC Technologies wins contract to support NASA's IV&V Program
Thursday, 03 June 2021 08:19
Worms on a mission to research muscle loss in space
Thursday, 03 June 2021 08:19
Government fund will support new ideas for cleaning up space
Thursday, 03 June 2021 08:19
NASA announces two new missions to Venus
Thursday, 03 June 2021 08:19
The Incredible Adventures of the Hera mission - Presenting Hera
Thursday, 03 June 2021 08:19
NASA picks Venus as hot spot for two new robotic missions
Thursday, 03 June 2021 06:34
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.
Axiom Space signs with SpaceX for 3 more private crew missions to ISS
Wednesday, 02 June 2021 23:40
Trashing space begins in low earth orbit
Wednesday, 02 June 2021 23:40
A new dimension in the quest to understand dark matter
Wednesday, 02 June 2021 23:40
NASA selects 2 missions to study Venus
Wednesday, 02 June 2021 23:40