For reasons by Vivaldi
Friday, 24 September 2021 12:10
Image:
A female volunteer gets comfortable in her waterbed, as the dry immersion study to recreate some of the effects of spaceflight on the body kicks off this week in Toulouse, France. Called Vivaldi, or Validation of the Dry Immersion, the campaign features all female-participants in a European first.
Immersion begins when water covers the subject above the thorax, immobilised with legs and trunk covered with a cotton sheet. Only the arms and head remain free outside the tarp.
As a result, the body experiences ‘supportlessness’ – something close to what astronauts feel while floating on the International Space Station.
In weightlessness,
Week in images: 20 - 24 September 2021
Friday, 24 September 2021 12:00
Week in images: 20 - 24 September 2021
Discover our week through the lens
Wildfire Map wins top prize at App Camp
Friday, 24 September 2021 11:30
An app that uses satellite data to show the location and impact of wildfires took home the top prize at this year’s Space App Camp.
House committee presses NOAA on commercial weather data and space traffic management
Friday, 24 September 2021 10:47
Members of the House Science Committee asked the new administrator of NOAA to make more use of commercial satellite data and take action on space traffic management.
What's behind Africa's increasing drive to launch satellites
Friday, 24 September 2021 08:37
Twenty-two years after putting the first African satellite into orbit, the continent's satellite fleet currently stands at 44. With Africa's most recent satellite launch taking place in June 2021, the next few years may see more launches on the continent.
The consultancy Space in Africa recently reported that 44 satellites have been sent into orbit by 13 African countries since the launch SpaceX satellite signals used like GPS to pinpoint location on Earth
Friday, 24 September 2021 08:37
Engineering researchers have developed a method to use signals broadcast by Starlink internet service satellites to accurately locate a position here on Earth, much like GPS does. It is the first time the Starlink system has been harnessed by researchers outside SpaceX for navigation.
The Starlink satellites, sent into orbit by Elon Musk's SpaceX, are designed to provide broadband internet The Biomass satellite and disappearing 'football fields'
Friday, 24 September 2021 08:37
Forests, especially tropical rainforests, are guardians against climate change. But our forests are burning. They are withering and dwindling. Our guardians are themselves threatened by climate change. A new European Space Agency (ESA) satellite mission, currently being built by Airbus, is set to investigate exactly how our forests are faring. The name says it all: Biomass.
Our forests and Exolaunch to facilitate launch of Lunasonde's Gossamer Satellite Constellation
Friday, 24 September 2021 08:37
Lunasonde, a startup that focuses on subsurface imaging from space, and Exolaunch, a global leader in rideshare launch, deployment and integration services for small satellites, announce the launch agreements to fly a portion of the Gossamer satellite constellation to a sun-synchronous orbit aboard SpaceX's Falcon 9 Transporter missions in 2022.
Though resources such as water and minerals How to weigh a quasar
Friday, 24 September 2021 08:37
Astronomers of the Max Planck Institute for Astronomy have, for the first time, successfully tested a new method for determining the masses of extreme black holes in quasars. This method is called spectroastrometry and is based on the measurement of radiation emitted by gas in the vicinity of supermassive black holes.
This measurement simultaneously determines the rotational velocity of th Earth from Space: Calabria, Italy
Friday, 24 September 2021 07:00
Calabria, often referred to as the ‘boot’ of Italy, is featured in this image captured by the Copernicus Sentinel-2 mission.
DLR is developing a Launch Coordination Center
Friday, 24 September 2021 06:41
The increasing commercialisation of space travel - often referred to as 'New Space' - will lead to significantly more spacecraft launches. More than 15,000 new satellites are expected to be launched in the current decade. Many of these satellites will be used for communications, navigation or Earth observation. To ensure continuity of operations, regular replacement of some of these satellites w NASA's Perseverance rover cameras capture Mars like never before
Friday, 24 September 2021 06:41
Scientists tap into an array of imagers aboard the six-wheeled explorer to get a big picture of the Red Planet.
NASA's Perseverance rover has been exploring Jezero Crater for more than 217 Earth days (211 Martian days, or sols), and the dusty rocks there are beginning to tell their story - about a volatile young Mars flowing with lava and water.
That story, stretching billions of yea NASA's InSight finds three big marsquakes, thanks to solar-panel dusting
Friday, 24 September 2021 06:41
The lander cleared enough dust from one solar panel to keep its seismometer on through the summer, allowing scientists to study the three biggest quakes they've seen on Mars.
On Sept. 18, NASA's InSight lander celebrated its 1,000th Martian day, or sol, by measuring one of the biggest, longest-lasting marsquakes the mission has ever detected. The temblor is estimated to be about a magnitud Peering into the Moon's shadows with AI
Friday, 24 September 2021 06:41
The Moon is a cold, dry desert. Unlike the Earth, it is not surrounded by a protective atmosphere and water which existed during the Moon's formation has long since evaporated under the influence of solar radiation and escaped into space. Nevertheless, craters and depressions in the polar regions give some reason to hope for limited water resources. Scientists from MPS, the University of Oxford 

Image:
Layered history