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Leonids meteor shower: how to see green shooting stars

Leonids meteor showers this weekend and early next week, with about 15 meteors crossing the night sky every hour. The missing moonlight will be bright, but you can still catch some green shooting stars. [19659002] The Leonids have created amazing meteor storms in the past, with up to 100,000 stars every hour. The next one will appear in 2099. Here's …

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Space Ballet: 2 Months of Neptune Makes an Unusual Pas de Deux

The two inner moons of Neptune locked in an unusual "dance of abstinence," with their perfect choreography which ensured that the moons were not so close to each other. That's a tricky song, as their orbital paths are separated by 1,150 miles (1,850 kilometers). But the moons themselves are never closer than 2,200 miles (3,450 kilometers) – several hundred miles …

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Amazon deforestation and number of fires show the summer of 2019 is not a & # 39; normal & # 39; that year

Recently deforested land in the Amazon. Credit: Marizilda Cruppe / Rede Amazon Sustentável The fires that occurred across the Amazon this summer were not & # 39; normal & # 39; and the huge increase in deforestation may explain why, scientists have shown. The noticeable size of the Amazon blazes has received international attention this summer. However, international concerns over …

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An amazing molecular machine

Adaptive iridocytes on the skin of the California squid market are capable of tuning through most of the spectrum. Credit: University of California – Santa Barbara Squid, octopus and cuttlefish are undoubtedly masters of deception and camouflage. Their exceptional ability to change color, texture and shape is unparalleled, even through modern technology. Researchers in the lab of UC Santa Barbara …

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North Korean Nuke Corresponds to '17 Hiroshimas' According to Space-Based Radar

satellites such as Sentinel-1 and ALOS-2 carry advanced synthetic aperture radars that can provide data to map ground cover changes, ground deformation, ice shelves, and glaciers, and can be used to help with emergency response during disasters such as floods, and to support humanitarian efforts in times of crisis. Credit: ESA / ATG medialab North Korea withdrew from the Non-Proliferation …

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Parker Solar Probe Data is Now Publicly Available

NASA's bold mission to kiss the Sun is now in its 15th month, with the Parker Solar Probe constantly approaching our host star in every passing orbit. The data gathered by the investigation during its first two stellar flybys are now available online, with NASA making it "available for interested public users to manipulate, analyze, and plan whatever way they …

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Physicians get the first footage of quantum knots not covered with superfluid

<img src = "https://cdn.arstechnica.net/wp-content/uploads/2019/11/knot1-800×420.jpg" alt = "Researchers capture decay of a whole knot (left ), which released itself after a few microseconds and eventually became a spin vortex (right), a knot (left), which opened itself after a few microseconds and eventually became a spin vortex (right). years ago today it was discovered that the knots were rotting, or "untieing" themselves, …

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