A polar bear chases a reindeer into the water, drags it ashore and devours it, in a striking scene caught on film for the first time.
Ecology
Nov 28, 2021
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1163
The planet urgently needs to transition to a green economy because fossil fuel pollution risks pushing the Earth into a lasting and dangerous "hothouse" state, researchers warned on Monday.
Environment
Aug 6, 2018
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5563
There's something going on beneath the surface of Jupiter's icy moon Europa. But what?
Space Exploration
Sep 23, 2016
6
1710
The idea of terraforming Mars – aka "Earth's Twin" – is a fascinating idea. Between melting the polar ice caps, slowly creating an atmosphere, and then engineering the environment to have foliage, rivers, and standing ...
Space Exploration
Mar 10, 2017
21
1679
Researchers are busy analysing some of the final data sent back from the Cassini spacecraft which has been in orbit around Saturn for more than 13 years until the end of its mission in September 2017.
Space Exploration
Jan 14, 2020
10
7264
Newly discovered layers of ice buried a mile beneath Mars' north pole are the remnants of ancient polar ice sheets and could be one of the largest water reservoirs on the planet, according to scientists at The University ...
Space Exploration
May 22, 2019
8
1843
Two research teams, using data from the European Space Agency's Mars Express orbiter, have recently published results suggesting that what were thought to be subsurface lakes on Mars may not really be lakes at all.
Planetary Sciences
Jul 3, 2021
1
1064
A colossal chess game of immense consequences is being fought in outer space, right now. On March 18 and April 22 2020, two rockets from SpaceX, owned by billionaire Elon Musk, each put 60 satellites into orbit. Those launches ...
Space Exploration
May 27, 2020
2
290
New research suggests forces pulling on Earth's surface as the planet spins may trigger earthquakes and eruptions at volcanoes.
Earth Sciences
Dec 27, 2019
48
4184
Atomic clocks, combined with precise astronomical measurements, have revealed that the length of a day is suddenly getting longer, and scientists don't know why.
Planetary Sciences
Aug 5, 2022
12
1699
A polarizer is an optical filter that passes light of a specific polarization and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam with well-defined polarization. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.
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