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1 day ago · The EarthSky sun news team produced this video for you. X flare potential is 50%! In the past day we had a X4.5 flare!It came after an X1.1 flare and 11 M flares over the past 24 hours.
5 days ago · Constellations were named after objects, animals, and people long ago. Astronomers today still use constellations to name stars and meteor showers. There are a few different definitions of constellations, but many people think of constellations as a group of stars. Often, it's a group of stars that looks like a particular shape in the sky and ...
4 days ago · The Sun occupies one of the two foci of the ellipse of a planet’s orbit. A line drawn through the point of the planet’s closest approach to the Sun (perihelion) and farthest retreat (aphelion) passes through the Sun and is called the line of apsides or major axis of the orbit; one-half this line’s length is the semimajor axis, equivalent ...
3 days ago · Venus is the second planet from the Sun. It is a terrestrial planet and is the closest in mass and size to its orbital neighbour Earth. Venus is notable for having the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover.
3 days ago · Unique Observations. Why the sun’s outer atmosphere- the corona- is hotter than its surface is one of the great mysteries of solar science. Cue Solar Orbiter, launched in 2020, has 10 scientific ...
5 days ago · 1. The sun is a star – The sun may look like a giant ball of fire in the sky, but it’s actually a star. It’s the closest star to Earth, and it’s the only star we can see during the day. 2. It’s really big – The sun is enormous! It’s so big that you could fit more than one million Earths inside of it. 3.
5 days ago · The Sun is always spewing gas and particles into space. This stream of particles is known as the solar wind. The gas and particles come from the Sun’s hot outer atmosphere, called the corona. These particles from the corona are charged with electricity. The solar wind carries these particles toward Earth at up to a million miles per hour!
