(CNN) Our solar system boasts a diverse range of planets, but some of them may share a common phenomenon with Earth: raindrops.
A Star Askew: A Potential Cause of the Misalignment of a Star and Its Planets | astrobites
Title: A backward-spinning star with two coplanar planets
Authors: Maria Hjorth, Simon Albrecht, Teruyuki Hirano, Joshua N. Winn, Rebekah I. Dawson, J. J. Zanazzi, Emil Knudstrup, & Bun'ei Sato
First author's institution: Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Denmark
Status: Open access on arXiv, published in Proceedings of the National Academy of Sciences
At the time of writing this Bite, we've discovered over 4,000 exoplanetary systems! As we discover more and more exoplanetary systems, we are beginning to get a sense of systems' typical characteristics, such as where different types of planets generally lie. One of these characteristics is that, in general, planets will form roughly parallel to the equator of their star and all orbit in the same direction.
Scientists work out what rain is like on other planets
Researchers have found that raindrops are remarkably similar across different planets, even planets as drastically different as Earth and Jupiter.
Raindrops on Earth are made of water – but on Venus it rains sulphuric acid; on Jupiter, it rains helium and mushy ammonia hailstones.
On Saturn's moon Titan, it rains methane, or liquified natural gas – and on Neptune, scientists suspect it rains pure carbon in the form of diamonds.
10 Best Star Wars Planets in the Galaxy | Den of Geek
Like any good space opera, part of the appeal of Star Wars are the beautiful alien vistas. From the wonder of AT-AT’s marching over a snowfield to a massive city floating among the clouds of a gas giant, Star Wars has long transported fans to strange new worlds.
Over the last few decades, the movies and the Expanded Universe have introduced hundreds of planets, moons, and stars to form one of the most complete and complex tapestries of locations in sci-fi. But which are the essential planets of Star Wars ? Which planets truly capture the spirit of the franchise?
Supercomputers Boost Understanding of Distance between Jupiter and Saturn
Comet provided researchers with a large number of cores so that they could run more than 6,000 simulations related to the spacing of Jupiter and Saturn. They found that the two large planets most likely formed with Jupiter making two orbits for every one of Saturn’s, rather than a resonance of three Jupiter orbits for every two of Saturn's, which most previous studies had assumed.
The solar system’s two largest planets, Jupiter and Saturn, received worldwide publicity on December 21, 2020, as they glided closer than they’ve been since 1623. Visible around the globe, “The Great Conjunction” placed the two planets only 0.1 degree apart from one another.
Main Ways In Which Stars Influence The Climate And Surface Habitability Of Their Planets -
First panel: Zonal annual mean average of the incident flux on an asynchronouslyrotating planet receiving a total of 1362 W m−2 (i.e. the solar constant on Earth), for four distinct obliquities (0, 23.5, 50, 90◦ ). Second panel: Incident flux on a synchronouslyrotating planet (also receiving a total of 1362 W m−2 ) versus substellar longitude. The zonal fluxes were calculated using equation 1 of Nadeau and McGehee (2017).
We present a brief overview of the main effects by which a star will have an impact (positive or negative) on the surface habitability of planets in orbit around it.
Hankook Origami, Shape-Shifting Wheel Is Perfect for Exploring Alien Planets - autoevolution
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