Space

Steam balloon variants. During ascent the ambient pressure decreases and consequently the gases expand. If the balloon is filled by steam partially (Variant 1), the expanding steam eventually fills the balloon. If the lower part is filled by hot air (Variant 2), extra air flows out from the bottom during the ascent. If the balloon
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WASHINGTON — Australia’s largest satellite operator Optus said Aug. 19 it will jointly pursue business connecting sensors and smart devices with Myriota, a startup planning a constellation of around 50 smallsats in low Earth orbit.  Optus, which operates five geostationary satellites covering Australia, said the partnership will combine its “national networks and digital enablement capabilities”
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Credit: CC0 Public Domain More The 50th anniversary of the Apollo 11 moon landing has reignited interest in space travel. However, almost any mission beyond the moon, whether manned or unmanned, will require the spacecraft to remain fully operational for at least several years. The Hall thruster is a propulsion system that is often used
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Credit: European Space Agency More Heigh-ho, heigh-ho, it is off to work the microbes go. ESA astronaut Luca Parmitano slides the smallest miners in the universe into the Kubik experiment container on the International Space Station. For the next three weeks, three different species of bacteria will unleash themselves on basalt slides in the Kubik
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The Reference mUltiscale Boiling Investigation experiment, known affectionately as Rubi, aims to expand our knowledge of the boiling process. Understanding how boiling behaves in weightlessness is imperative because gravity plays an important role in this process.  Without gravity, boiling takes place in slow motion and produces larger bubbles. This will allow scientists to observe and
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Artist’s rendering of the surface of LHS 3844b, a planet that has been found to have no atmosphere. Credit: NASA/JPL-Caltech/R. Hurt (IPAC) More Astronomers at MIT, Harvard University, and elsewhere have searched a rocky, Earth-sized exoplanet for signs of an atmosphere—and found none. Atmospheres have previously been detected on planets much larger than our own,
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The Universe is expanding, and that expansion is speeding up over time. These two facts have been well established through observation, but we don’t know what’s causing that expansion. It seems to be some mysterious, unknown energy that acts like the opposite of gravity. We call this hypothetical energy “dark energy“, and it’s been calculated
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WASHINGTON — While NASA has yet to update the schedule for the first flight of its Space Launch System, companies working on the heavy-lift rocket now expect the rocket to launch in early 2021 rather than 2020. The first launch of the SLS, on a mission called Artemis 1, had been formally scheduled for the
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Chandrayaan 2, or Moon Chariot 2, lifted off from India’s spaceport at Sriharikota in southern Andhra Pradesh state on July 22 More India’s Chandrayaan 2 spacecraft entered lunar orbit on Tuesday, executing one of the trickiest manoeuvres on its historic mission to the Moon. After four weeks of interstellar travel, the spacecraft completed its Lunar
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