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 E-Mail IMAGE: Artistic impression of the surface of the newly discovered hot super-Earth Gliese 486b. With a temperature of about 700 Kelvin (430°C), the astronomers of the CARMENES Consortium expect a Venus-like... view more  Credit: RenderArea, https://renderarea.com A newly discovered planet could be our best chance yet of studying rocky planet atmospheres outside the solar system, a new international study involving UNSW Sydney shows. The planet, called Gliese 486b (pronounced Glee-seh), is a 'super-Earth': that is, a rocky planet bigger than Earth but smaller than ice giants...

 E-Mail IMAGE: This artist's illustration represents the possible interior dynamics of the super-Earth exoplanet LHS 3844b. The planet's interior properties and the strong stellar irradiation might lead to a hemispheric tectonic regime.... view more  Credit: © Universität Bern / University of Bern, Illustration: Thibaut Roger On Earth, plate tectonics is not only responsible for the rise of mountains and earthquakes. It is also an essential part of the cycle that brings material from the planet's interior to the surface and the atmosphere, and then transports it back beneath the E...

Credit: RenderArea During the past 25 years astronomers have discovered a wide variety of exoplanets, made of rock, ice and gas, thanks to the construction of astronomical instruments designed specifically for planet searches. Also, using a combination of different observing techniques they have been able to determine a large numher of masses, sizes, and hence densities of the planets, which helps them to estimate their internal composition and raising the number of planets which have been discovered outside the Solar System. However, to study the atmospheres of the rocky planets, which would...

 E-Mail The planet Mars has no global magnetic field, although scientists believe it did have one at some point in the past. Previous studies suggest that when Mars' global magnetic field was present, it was approximately the same strength as Earth's current field. Surprisingly, instruments from past Mars missions, both orbiters and landers, have spotted patches on the planet's surface that are strongly magnetized--a property that could not have been produced by a magnetic field similar to Earth's, assuming the rocks on both planets are similar. Ahmed AlHantoobi, an intern working with Nort...

Hurricanes are known to occur in the lower atmosphere of Earth and even other planets, but had never before been detected in the upper atmosphere. An international team of scientists made the unprecedented discovery during retrospective analysis of satellite observations. The hurricane occurred during surprisingly low geomagnetic activity, and suggests they could occur in the upper atmosphere of other planets too.