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Distant planets once linked to oceans may be full of magma (AI-generted) Astronomers have spent the past decade cataloguing thousands of planets beyond the solar system, many of them falling into a strange middle category. These worlds, known as sub Neptunes, are larger than Earth but smaller than Neptune, and they appear everywhere modern telescopes…
A layer of molten rock deep inside some rocky planets may be doing more than shaping their interiors. New research points to the possibility that these hidden magma oceans could help protect planets over long stretches of time. The idea is not centred on surface conditions or atmospheres, but on what happens far below, under…
NASA scientist James Hansen took a courageous step by alerting the United States Congress to the growing danger of a warming planet in 1988. His warning, however, was largely dismissed at the time. Now, nearly 37 years later, Hansen has returned to the forefront of climate research, leading a team of international scientists in highlighting…
For years, astronomers have believed that water-rich planets could only form beyond a system’s “snow line,” the region where icy materials condense during planet formation. Yet a recent Nature study challenges this foundation, showing that hydrogen-rich sub-Neptunes, planets between Earth and Neptune in size, can generate vast quantities of water internally through high-pressure chemical reactions….
