The new study, published in the journal Space Weather, gives precise indicators for how a future mission to Mars should be timed. With sufficient shielding on the Mars-bound spacecraft, a human Mars mission should be shorter than four years to keep the astronauts safe, the study says.
The Sun can also protect future Mars astronauts from the worst radiation.
Back in August of 2017, Cassini stared at Enceladus for 14 hours, looking at the moon’s night side.
Below is a movie sequence of images, garnered from the final dedicated observation of the Enceladus’ geysers by the imitable Cassini spacecraft.
Back in August of 2,017 Cassini stared at Enceladus for 14 hours, looking at the moon’s night side. The movie begins with a view of the part of the surface lit by reflected light from Saturn and transitions to completely unilluminated terrain. About halfway through the sequence, the exposure time of the images changes in order to make fainter features more visible as the light level drops.
Global fire map and data. NASA | LANCE | Fire Information for Resource Management System provides near real-time active fire data from MODIS and VIIRS to meet the needs of firefighters, scientists and users interested in monitoring fires. Fire data is available for download or can be viewed through a map interface. Users can subscribe to email alerts bases on their area of interest.
South Korea’s parliament has approved a bill that will make it the first country to impose curbs on Google and Apple’s payment policies that force developers to only use the tech giants’ proprietary billing systems.
The legislation will become law once signed by President Moon Jae-in, whose party has been a vocal supporter of the bill.
Apple and Google’s policies usually require developers to pay the tech giants a commission as high as 30% of every transaction.
Volkner’s over-the-top motorhome package slides a 1,480-hp Bugatti Chiron aboard its $2.4-million Performance S motorhome and treats owners of the elaborate ultra-luxury/hypercar vehicle experience.
In the past, we’ve seen Volkner edge out its few competitors for “most expensive motorhome of the Düsseldorf Caravan Salon” honors with stretched luxury homes as “modestly” priced as $1.7 million. This year, it leaves the competition in the dust, going all out on the priciest, most over-the-top motorhome package on the show floor. It slides a 1,480-hp Bugatti Chiron aboard its $2.4-million Performance S motorhome and treats owners of the elaborate ultra-luxury/hypercar vehicle experience to a lavishly appointed abode complete with custom Burmester audio system carefully tailored to the mobile space.
For more than a decade, Volkner has been wowing the Düsseldorf crowds with the sporty roadsters and supercars it manages to squeeze between the axles of its huge motorhomes. This year, it’s really upped its own game.
The $3-million Bugatti Chiron actually costs more than the Performance S motorhome itself and packs more than triple the horsepower of Volkner’s 430-hp 18-ton 39-footer. We preferred the Porsche 911 GT2 Volkner brought to the 2018 Caravan Salon not a full year after the car’s Nürburgring record, but there’s no denying that the Chiron and Performance S team is an absolutely stunning package, a pairing of extreme, over-the-top motorized engineering like few we’ll ever see.
On August 9 2021, the joint ESA/NASA Solar Orbiter spacecraft performed a flyby of Venus, coming within 7,995 km of the Venusian surface. Just 33 hours later, on August 10 the joint ESA/JAXA BepiColombo spacecraft flew by the planet, coming within 552 km of the surface.
The historic double flyby was a result of the two spacecraft attempting to reduce their orbital energy while en route to their respective destinations. BepiColombo is traveling to Mercury, where it will study the planet in-depth, while Solar Orbiter is finishing its last flybys before entering the correct orbital inclination to best observe the Sun.
The double flybys required great accuracy and precise deep-space network coordination to ensure the two trajectories did not cross. During the flyby, both BepiColombo and Solar Orbiter collected data on Earth’s sister planet.