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Venus: Proof of active volcanoes—at last
PHYS.ORG   19 March 2023   World  
A perspective view across Maat Mons on Venus, based on Magellan radar data. Credit: NASA/JPL
<p>Venus is almost the same size, mass and density as Earth. So it should be generating heat in its interior (by the decay of radioactive elements) at much the same rate as the Earth does. On Earth, one of the main ways in which this heat leaks out is via ...
Oh my days! Midnight comes a fraction sooner as Earth spins faster
The Guardian   01 August 2022   World  
A single spin of the Earth marks out a day and drives the cycle of sunrise and sunset. Photograph: Janez Volmajer/Alamy
<p>If time feels tighter than ever of late, blame it on the revolution. On 29 June this year, Earth racked up an unusual record: its shortest day since the 1960s, when scientists began measuring the planet&rsquo;s rotation with high-precision atomic clocks.<br ...
China has landed its first rover on Mars — here’s what happens next
Nature.com   15 May 2021   China  
The surface of Mars, photographed by China’s Tianwen-1 probe after it arrived in orbit in February.Credit: CNSA/Xinhua/Alamy
<p>China&rsquo;s Tianwen-1 spacecraft, currently in orbit around the Red Planet, has dropped its lander and rover &mdash; named Zhurong after a Chinese mythological god of fire &mdash; completing the most perilous stage of its ten-month mission.<br />According ...
Meteorite contains the oldest material on Earth: 7-billion-year-old stardust
Geology Page   14 January 2020   World  
Credit: Captmondo/Wikimedia
<p>Stars have life cycles. They&rsquo;re born when bits of dust and gas floating through space find each other and collapse in on each other and heat up. They burn for millions to billions of years, and then they die. When they die, they pitch the particles ...