
Copernical Team
Worms blast off into space for muscle loss mission

Thousands of tiny worms will be launched into space today (3 June) to help scientists to understand more about muscle loss and how to prevent it.
Led by scientists from the University of Nottingham and the University of Exeter, with hardware designed by Oxford-based Kayser Space, the research team aims to determine the causes of muscle changes during spaceflight and find ways to mitigate these biological changes.
Spaceflight is an extreme environment that causes many negative changes to the body, with astronauts losing up to 40 percent of their muscle after six months in space.
Based on these changes, spaceflight is regarded as an excellent model to enhance understanding of aging, inactivity and certain clinical conditions on different body systems.
Studying changes in muscle that occur with spaceflight could lead to more effective therapies and new treatments for age-associate muscle loss and muscular dystrophies.
Previous research revealed that the microscopic worm, C. elegans, and humans experience similar molecular changes in space that affect muscle and metabolism.
This new mission, which follows on from previous research carried out by the same research team in 2018, will see the worms once again launched into space to try to identify the precise molecules that cause these problems.
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 Center, which is Europe's largest satellite test facility.
All but two of the 26 Galileo satellites already in orbit underwent pre-flight testing at this 3000 sq. m environmentally-controlled complex, hosting test equipment to simulate all aspects of spaceflight. The Test Center is operated and managed by European Test Services for ESA.
All 12 Batch 3 satellites—functionally similar to the Full Operational Capability satellites already in orbit—are scheduled to come here from OHB in Germany to assess their readiness for space, before heading on to French Guiana.
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.
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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.