Massive low-Earth orbit communications satellites could disrupt astronomy
Observations of the BlueWalker 3 prototype satellite show it is one of the brightest objects in the night sky, outshining all but the brightest stars.
Observations of the BlueWalker 3 prototype satellite show it is one of the brightest objects in the night sky, outshining all but the brightest stars.
Astronomy
Oct 2, 2023
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What do you feel when you see the aurora?
Planetary Sciences
Aug 15, 2023
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101
The hunt for alien life and its radio signals from beyond our solar system is still coming up dry. But, it's not for lack of looking for possible advanced civilizations.
Astronomy
Aug 15, 2023
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154
Scientists from a number of leading research institutions including the Max Planck Institute for Radio Astronomy in Bonn, Germany, used the Low Frequency Array (LOFAR) telescope to observe 68 of SpaceX's satellites. The authors ...
Astronomy
Jul 5, 2023
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560
Earthquakes are caused by the movement of the tectonic plates that make up Earth's crust. Off the coast of Alaska, the Pacific plate thrusts underneath the North American plate creating enormous pressure at the Alaska-Aleutian ...
Earth Sciences
Jun 22, 2023
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39
First detected accidentally by US military satellites in the late 1960s, cosmic explosions known as gamma ray bursts (GRBs) have come to be understood as the brightest explosions in the universe.
Astronomy
Jun 10, 2023
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118
Lunar exploration is undergoing a renaissance. Dozens of missions, organized by multiple space agencies—and increasingly by commercial companies—are set to visit the moon by the end of this decade. Most of these will ...
Space Exploration
Apr 19, 2023
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55
Two CubeSats, or small satellites, are on a quest to provide insight on space weather disturbances and the subsequent impact on communication signals. The dynamic duo, the Plasma Enhancements in the Ionosphere-Thermosphere ...
Space Exploration
Dec 30, 2022
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Researchers at the University of Twente have developed a revolutionary programmable integrated microwave photonic filter with a record-breaking dynamic range. This represents a major breakthrough in the integration of functionality ...
Optics & Photonics
Dec 22, 2022
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24
The night sky is a shared wilderness. On a dark night, away from the city lights, you can see the stars in the same way as your ancestors did centuries ago. You can see the Milky Way and the constellations associated with ...
Astronomy
Dec 1, 2022
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21