reentry
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SpaceX tests heat shields that will stop its Starship from burning up
After successfully getting its Crew Dragon capsule to the International Space Station (ISS) and back, SpaceX has shifted focus to another huge project: the interplanetary Starship. In a tweet, Elon Musk showed off tests on the Starship's heat shield, the part that will keep it from burning up when it returns to Earth. The blow-torch like devices brought the temperatures up to 1,650 degrees Kelvin (2,500 degrees F) at the most extreme, white-hot regions -- enough to stand the heat of orbital re-entry, Musk said.
China's first space station will burn up in late 2017
Officials in China have conceded that Tiangong-1, the nation's first space station, has now settled into a decaying orbit. That's a sanitized, polite way of saying that the 18,753 pound craft is now hurtling towards Earth with no way of controlling its descent. The vessel is expected to begin burning up towards the end of 2017, although there's a couple of caveats that may not music to anyone's ears.
Russia's broken ISS supply vessel burns up in the atmosphere
An out-of-control Russian spacecraft has finally met its demise after re-entering the Earth's atmosphere. Progress M-27M was supposed to perform a resupply mission with the ISS, but ground control quickly lost contact after its launch on April 28th. Since then, the craft has been orbiting and slowly descending towards the Earth due to natural atmospheric drag and the planet's gravitational pull. Now, Russia's Roscosmos space agency has confirmed that Progress M-27M broke through over the central Pacific Ocean on Friday morning (May 8th). Most of the craft is expected to have burnt up during re-entry, but there's a chance some debris survived. Engineers are still trying to work out why they lost control in the first place -- it occurred after separation with the Soyuz 2-1A rocket, although reports suggest the rocket, rather than Progress, was to blame. Thankfully, no-one was hurt and the ISS is in no immediate danger, given the crew still has plenty of supplies.
Here's what astronauts aboard Orion will see during re-entry
Most of us will never be astronauts -- sorry to break it to ya -- but we can at least pretend to be aboard the Orion capsule with this video (below the fold), courtesy of NASA. Orion's camera captured 10 minutes of footage from the time it started blazing through Earth's atmosphere until it deployed its parachutes to slow down its descent into the ocean. You'll even see the plasma (created by friction between the atmosphere and the heat shield) change colors as the capsule speeds up and temperature increases. NASA launched a test flight of the Lockheed-made spacecraft in early December to test its components, especially its heat shield.
DNA smeared on a rocket survives re-entry and tells of life's origins
Well, would you look at that: scientists have discovered that DNA can make it through the hellish ordeal of atmospheric re-entry after all. German and Swiss researchers dotted a rocket's grooves and screw heads with fragments of genetic blueprints to see how they'd fare in situations that could've led to the appearance of life on Earth. Scientific American notes that the 13-minute rocket trip might not perfectly represent how DNA might actually travel from one celestial body to the next (that'd be by meteor), but there is purpose here. What the experiment suggests is that even if the meteor's been scorched, that the material can survive at higher temperatures than previously expected, and as such this paints a better picture of just how resilient DNA is. What's next? Pushing the limits further and seeing exactly what it takes to kill the double helix -- we're pretty sure at least one rock band is itching to find out. [Image credit: Getty Images/OJO Images RF]
PSA: SpaceX's Dragon due to splash down at 11:44am ET (video)
SpaceX's Dragon spacecraft successfully departed the International Space Station at 4:07am ET and began its gentle descent into the atmosphere soon after. It's the home straight for the historic private spaceflight company as it concludes its first ever supply mission to the heavens. It's due to splash down in the Pacific Ocean, a few hundred miles off the coast of southern California at 11:44am ET. If you'd like to watch the craft being retrieved from its watery berth then head on past the break, with coverage set to begin from 10:15am ET.
Japanese spacecraft's 'black box' recorder survives flaming fall to earth
When we reported on Japan's plans to track the re-entry process of its Kounotori 2 spacecraft with a black-box-style recorder, there were still some unanswered questions: specifically, would the REBR (Re-entry Breakup Recorder) sink or swim. Well, according to an announcement from the device's creator, the thing not only survived the fiery plunge to Earth, but it also stayed afloat after plunking down in the South Pacific Ocean on Tuesday. During free fall, the REBR did as it was expected, automatically monitoring, recording, and eventually transmitting data about the re-entry process, and while the thing was admittedly "not designed to survive impact with the water," it continued relaying information even after landing. The next scheduled REBR mission is planned for June -- here's hoping the new guy's as buoyant as its buddy. Full PR after the break.
Japan sends Kounotori 2 spacecraft on suicide mission to study re-entry process
An unmanned cargo ship built by the Japan Aerospace Exploration Agency (JAXA) is set to go up in flames tomorrow in the name of interplanetary research. Along with a load of space station junk, the Kounotori 2 spacecraft is packing something akin to a black box, also known as a Re-entry Breakup Recorder (REBR), that will collect and transmit data about the ship's final moments. The space station's crew will activate the REBR before Kounotori 2 begins its final assignment. As soon as it starts showing signs of re-entry, the sensor will begin to collect data including temperature, acceleration, and rotation rate, and will then break away from the craft for a final free fall to Earth, at which point the REBR will dump its findings. Scientist hope the device will help answer questions about exactly what happens when things fall apart during re-entry. If all goes according to plan, the REBR will plunk down in the ocean sometime later, but its host will never be seen again... farewell, Kounotori 2.
FAA gives SpaceX the first-ever commercial license for spacecraft reentry
Well, SpaceX just scored a huge milestone in space travel for the proletariat: we get to come back now. The FAA just gave SpaceX's Dragon capsule a reentry license, paving the way for it to make round trips to the International Space Station and eventually even take people up there. NASA, who already has some hefty contracts with SpaceX for launches, has congratulated SpaceX over Twitter on the good news, though we're sure the few billion dollars in future business speaks volumes already. Engadget's own Chad Mumm, resident Space Destiny Enthusiast, had this to say about the momentous occasion: "We're standing on the shoulders of our ancestors, reaching out a small, child-like hand at the stars. And then returning safely to earth thanks to FAA certification. We're on the verge of the impossible." Sorry, there's something in our eye...
