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Archive for the ‘space’ category: Page 544

Nov 12, 2020

A cosmic amethyst in a dying star

Posted by in categories: energy, space

On Earth, amethysts can form when gas bubbles in lava cool under the right conditions. In space, a dying star with a mass similar to the Sun is capable of producing a structure on par with the appeal of these beautiful gems.

As like the Sun run through their fuel, they cast off their outer layers and the core of the star shrinks. Using NASA’s Chandra X-ray Observatory, astronomers have found a bubble of ultra-hot gas at the center of one of these expiring stars, a in our galaxy called IC 4593. At a distance of about 7,800 from Earth, IC 4593 is the most distant planetary nebula yet detected with Chandra.

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Nov 12, 2020

Flying cars in Orlando? The first U.S. ‘air taxi’ hub is coming to Lake Nona by 2025

Posted by in category: space

Move over, I-4 Ultimate – the skies over Orlando may very well look like The Jetsons in a few years.

Nov 12, 2020

Why is Mars so important for humanity?

Posted by in category: space

It’s touchdown again on Mars, thanks to NASA’s InSight probe. This latest mission will continue our exploration of much that is still unknown about the planet.

As seen from Earth, the big red dot in the night sky has certainly caught the attention of humans since we started contemplating the universe.

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Nov 12, 2020

Oxygen to be extracted from ‘moon rock’ in Rotherham

Posted by in category: space

The project is part of the European Space Agency (Esa)’s ambitions to colonise the Moon.

Nov 11, 2020

How NASA Tests Spacesuits

Posted by in category: space

Nov 10, 2020

Strange Images Captured By NASA That Need Explaining

Posted by in category: space

Nov 9, 2020

Europa glows: Radiation does a bright number on Jupiter’s moon

Posted by in categories: particle physics, space

As the icy, ocean-filled moon Europa orbits Jupiter, it withstands a relentless pummeling of radiation. Jupiter zaps Europa’s surface night and day with electrons and other particles, bathing it in high-energy radiation. But as these particles pound the moon’s surface, they may also be doing something otherworldly: making Europa glow in the dark.

New research from scientists at NASA’s Jet Propulsion Laboratory in Southern California details for the first time what the glow would look like, and what it could reveal about the composition of ice on Europa’s . Different salty compounds react differently to the radiation and emit their own unique glimmer. To the naked eye, this glow would look sometimes slightly green, sometimes slightly blue or white and with varying degrees of brightness, depending on what material it is.

Scientists use a spectrometer to separate the light into wavelengths and connect the distinct “signatures,” or spectra, to different compositions of ice. Most observations using a spectrometer on a moon like Europa are taken using reflected sunlight on the moon’s dayside, but these new results illuminate what Europa would look like in the dark.

Nov 9, 2020

SpaceX gets $29 million Space Force contract for surveillance of non-military launches

Posted by in categories: military, space, surveillance

WASHINGTON — SpaceX was awarded a $29.6 million contract under the National Security Space Launch Phase 2 contract that allows the U.S. Space Force to monitor and study data from the company’s commercial and civil space missions.

The one-year contract “provides early integration studies and fleet surveillance for non-national security space missions,” said the Space Force contract announcement Nov. 9.

Fleet surveillance includes access to proprietary “tools, systems, processes and launch site activities developed by the launch service provider for non-national security space missions,” said the Space Force.

Nov 9, 2020

Jupiter’s moon Europa glows in the dark, scientists say

Posted by in categories: chemistry, space

The glow could help scientists determine if a subsurface ocean on Europa is a good place to look for life.


Intense radiation from the giant planet Jupiter causes the night side of its moon Europa to visibly glow in the dark – a phenomenon that could help scientists learn if it can sustain simple forms of life, according to a new study.

The findings, published Monday in the journal Nature Astronomy, were the result of experiments by NASA scientists to study how Jupiter’s radiation affects the chemistry of Europa, which is thought to harbor a subsurface ocean of water.

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Nov 9, 2020

X-43A (Hyper-X)

Posted by in categories: military, space

Four decades of supersonic-combustion ramjet propulsion research culminated in a successful flight of the X-43A hypersonic technology demonstrator in March 2004, the first time a scramjet-powered aircraft had flown freely. After being launched by Dryden’s venerable B-52B mothership off the coast of Southern California, a modified first-stage Pegasus booster rocketed the X-43A to 95,000 feet before the X-43A separated and flew under its own scramjet power at an airspeed of Mach 6.8, or about 5,000 mph, for about 11 seconds. On Nov. 16, another identical scramjet-powered X-43A did it again, this time reaching hypersonic speeds above Mach 9.6, or about 6,800 mph, in the final flight of the X-43A project. Both flights set world airspeed records for an aircraft powered by an air-breathing engine, and proved that scramjet propulsion is a viable technology for powering future space-access vehicles and hypersonic aircraft.