A cruise ship leaving the Havana Harbor at the exact time of the Cuba meteor. Credit: Rachel Cook On February 1, 2019 a bright meteor crossed the sky over Cuba in the middle of the day. The phenomenon, which was followed by a smoke trail (a characteristic cloud left by the burn in the atmosphere…

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MELBOURNE, Fla. – That mysterious flashing light? Turns out, it was a meteor, News 6 partner Florida Today reported. The meteor that streaked across the skies of Central Florida on Tuesday was a “large fireball” that likely exploded over the Atlantic Ocean with the energy of a tenth of a kiloton —  or the explosive…

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Enlarge / A Falcon 9 rocket launches from Vandenberg Air Force Base. Welcome to Edition 1.36 of the Rocket Report! Lots of news this week on smaller rockets and the spaceports around the world that aspire to launch them. There’s also an interesting report that may explain, at least in part, why recent Iranian attempts…

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Drive along with the Opportunity rover and hear the voices of scientists and engineers behind the mission. Designed to run for 90 days, the exploration spanned more than 15 years from 2004 to 2019. Along the way, it discovered definitive proof of liquid water on ancient Mars and set the off-world driving record. On Tuesday…

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BACKGROUND The electron can be considered as a tiny magnet, with two opposite poles defining its magnetic field associated with the spin and orbital motion. When such minuscule magnets are collectively aligned as a result of the inherent coupling, ferromagnetism emerges. However, ferromagnetism had long been believed to hardly survive in two-dimensional (2D) systems because…

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A series of images from NASA’s New Horizons spacecraft contains important scientific information about the true shape of the Kuiper Belt object Ultima Thule (2014 MU69). These images are the final views New Horizons captured of Ultima Thule as it raced away at over 31,000 mph (50,000 kmh) on January 1, 2019. New Horizons team…

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If liquid water indeed exists under the south polar ice cap of Mars, it has to be due to volcanic activity, a new study suggests. The researchers behind the new work argued that there needs to be an underground source of heat to melt ice under an ice cap — although they didn’t weigh in…

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When neutron stars collide, they emit light and gravitational waves, as seen in this artist’s illustration. By comparing the timing of the two emissions from many different neutron star mergers, researchers can measure how fast the universe is expanding. Credit: R. Hurt/Caltech-JPL Measurements of gravitational waves from approximately 50 binary neutron stars over the next…

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The ‘super blood wolf’ lunar eclipse was a globally popular event for several reasons. One, it occurred during the moon’s perigee or closest point in its orbit to Earth. This made it particularly bright and clear on the night in question (January 21, 2019). This also meant that the red color typically associated with full…

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