Month: April 2019

In February of 2016, scientists at the Laser Interferometer Gravitational-wave Observatory (LIGO) announced the first-ever detection of gravitational waves (GWs). Since then, multiple events have been detected, providing insight into a cosmic phenomena that was predicted over a century ago by Einstein’s Theory of General Relativity. A little over a year ago, LIGO was taken
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You can be thankful that we orbit a placid, main sequence, yellow dwarf star. Astronomers recently spied a massive superflare on a diminutive star, a powerful, radiation spewing event that you wouldn’t want to witness up close. The ‘star’ was ULAS J224940.13-011236.9, an L-type sub-stellar brown dwarf near the Aquarius-Pisces border. The cumbersome, phone number-style
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Belarusian flag Getty More than 65,000 children in rural areas and villages across Belarus will benefit from an education programme aimed at promoting collaborative learning and science education. The Education Minister Igor Karpenko and World Bank Office Country Manager in Belarus, Alex Kremer, signed an agreement on additional financing of the Belarus Education Modernization Project.
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WASHINGTON — NASA will establish an independent committee to review its planetary protection policies to reflect new developments in human space exploration and commercial spaceflight. In an April 23 statement, the agency said it will create an independent Planetary Protection Review Board to recommend any updates to existing regulations intended to prevent contamination of potentially
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Basically no part of this is fun. ICRAR/University of Amsterdam Yes, black holes get all of the attention. They’re mysterious, they lurk in the shows of interstellar space, they break the laws of known physics, they can trap you forever, they have a cool-sounding and easy-to-understand name. They’ve got great branding. But some things are
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HELSINKI — Two Chinese launch startups have successfully carried out tests of technology demonstration rockets as part of quests to develop reusable launch vehicles. New Chinese launch firm Space Transportation carried out a test April 22 in northwest China in cooperation with Xiamen University, launching a 3,700-kilogram technology demonstrator named Jiageng-1. Launch took place at
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WASHINGTON — NASA has updated a planned call for proposals for lunar landers to enable a human mission in 2024, broadening the scope to include integrated lander concepts. In a procurement filing issued late April 26, NASA updated an earlier notice published April 8 that announced plans to solicit proposals for an ascent stage for
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The three valence quarks of a proton contribute to its spin, but so do the gluons, sea quarks and antiquarks, and orbital angular momentum as well. The electrostatic repulsion and the attractive strong nuclear force, in tandem, are what give the proton its size, and the properties of quark mixing are required to explain the
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WASHINGTON — U.S. telecom regulators approved a request from SpaceX to lower the orbit of nearly 1,600 of its proposed broadband satellites. The Federal Communications Commission said April 26 it was ok with SpaceX changing its plans to orbit those satellites at 550 kilometers instead of 1,150 kilometers. SpaceX says the adjustment, requested six months ago, will make a
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