Yet on April 28, 2022, each instrument’s alignment was completed, with a ~20 year lifetime expected. Both telescope and team performed dazzlingly, surpassing expectations overall.
First: the pristine, on-course launch conserved fuel purposed for course-correction.
JWST reached its destination, the L2 Lagrange point, ahead of schedule.
Neil deGrasse Tyson gives his opinion on Elon Musk buying Twitter. Should Elon Musk be spending his time on Twitter or getting us to Mars? What does Neil deGrasse Tyson think of Mars as a backup plan for humanity? Is Neil deGrasse Tyson concerned about Elon Musk’s new policies?
#neildegrassetyson #elonmusk #twitter.
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NASA has an ambitious plan to bring a piece of Mars back to Earth for study. Called the Mars Sample Return mission, the idea is to send a robotic team consisting of a lander, rover, and an ascent vehicle to the red planet to pick up samples being collected and sealed in tubes by the Perseverance rover. These samples will then be launched off the Martian surface and into orbit, where they’ll be collected and brought back to Earth.
If that sounds complicated, it is. NASA is working on some of the hardware required for this ambitious long-term mission, and recently the agency tested out a new design for the Earth Entry System vehicle which will carry the sample through our planet’s atmosphere and to the surface. And its test was a dramatic one — dropping a model of the vehicle from 1,200 feet and seeing if it survived.
The test was focused on the vehicle’s areoshell, testing out one possible design for the shell which has to protect the delicate electronics and sample inside from the heat and forces of passing through Earth’s atmosphere. To do this, the test was performed at the Utah Test and Training Range, where a helicopter ascended with a model of the vehicle and areoshell, called a Manufacturing Demonstration Unit (MDU), that was covered in sensors and measures 1.25 meters across. The MDU was then dropped by the helicopter and its descent was recorded. Coming from an altitude of 1,200 feet, the MDU reached the speeds that would be engineers think are equivalent to a sample landing mission.
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Hello and welcome! My name is Anton and in this video, we will talk about new interesting proposition on how to terraform Venus using floating continents.
Links:
https://en.wikipedia.org/wiki/Terraforming_of_Venus.
https://arxiv.org/pdf/2203.06722.pdf.
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Musk’s company SpaceX is supplying internet service to troops in Ukraine, and helping them beat the Russians.
Alignment of NASA’s James Webb Space Telescope is now complete. After full review, the observatory has been confirmed to be capable of capturing crisp, well-focused images with each of its four powerful onboard science instruments. Upon completing the seventh and final stage of telescope alignment, the team held a set of key decision meetings and unanimously agreed that Webb is ready to move forward into its next and final series of preparations, known as science instrument commissioning. This process will take about two months before scientific operations begin in the summer.
The alignment of the telescope across all of Webb’s instruments can be seen in a series of images that captures the observatory’s full field of view.
“These remarkable test images from a successfully aligned telescope demonstrate what people across countries and continents can achieve when there is a bold scientific vision to explore the universe,” said Lee Feinberg, Webb optical telescope element manager at NASA’s Goddard Space Flight Center.
When it comes to responding to emerging threats, the Pentagon’s director for electromagnetic warfare suggested today that the US military’s electronic warfare organization should borrow a leaf from SpaceX.
SpaceX founder Elon Musk said that Russia had jammed Starlink terminals in Ukraine for hours at a time after SpaceX shipped Starlink terminals to Ukraine in February in an apparent effort to help Ukraine preserve its internet connection amid the war with Russia. Starlink was back up and running after a software upgrade, according to Musk, who added on March 25 that the constellation had “resisted all hacking & jamming attempts” in Ukraine.
Assuming Musk — who is known for being a showboater in his public pronouncements — is giving an accurate image, a private company thwarting Russian EW attempts with software updates is the kind of thing that makes Pentagon EW experts sit up and take notice.
“That’s wonderful from the standpoint of an EW technologist. Dave Tremper, head of electronic warfare for the Pentagon’s acquisition office, remarked, “That paradigm and how they executed that is sort of eyewatering to me.” “We need to be able to upgrade in the same way that Starlink was able to when a threat appeared. We need to be able to modify our electromagnetic posture quickly, and we need to be able to change what we’re attempting to do without sacrificing capabilities.”
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Last week, NASA’s Perseverance Rover captured a gorgeous view of Phobos eclipsing the Sun, from the surface of Mars. From the point of view of any Martian microbes lurking out there, the eclipse may have seemed more ominous (yeah ok, there might not be living organisms up there, let alone ones sentient enough to grasp the concept of an eclipse) as the moon is destined by physics to one day slam into the red planet.
Phobos – the closest of Mars’ two moons – is set to get ever closer to the planet, before its final descent, while Deimos will drift ever outwards until it leaves Mars’ orbit.
