Despite the fact that Mars has an atmosphere just 1% as dense as Earth’s, the surface of the Red Planet still has to deal with plenty of weathering and erosion. In 2008, researchers even captured a ...

Several planets, including Mercury, Mars, Venus, Uranus, Neptune, Saturn, and Jupiter, are visible this month. Saturn's moon Titan will cast its shadow on Saturn twice during July. Neptune will be ...

August 2025 offers several planetary conjunctions, including a close approach of Venus and Jupiter on August 12th, and a second conjunction of Saturn and Neptune on August 6th, with a third occurring ...

Apollo mission lunar samples provided crucial data, initially intended to test existing Moon formation theories (capture, co-formation, fission), but ultimately leading to the development of the Giant ...

The Sun's surface is a turbulent mix of superheated gas. If sound could travel through space, the Sun would sound like a constant, loud roar. This roar would be caused by massive movements of hot gas ...

The Eagle Nebula (M16), an emission nebula in Serpens, is a luminous open star cluster surrounded by gas and dust, whose central pillars are sculpted by intense stellar radiation. Nebulae are clouds ...

The Giza pyramids' alignment with stars is debated; no definitive proof exists. Internal shafts in the Great Pyramid have an unclear purpose, possibly not for stargazing. The pyramids show ...

(Editor’s note: The author of this article is one of the authors of a new paper on Planet Nine, which you can read here. It has been accepted for publication in The Astrophysical Journal Letters.) In ...

The universe began with an unimaginably hot, dense state. Inflation rapidly expanded the universe's size. Before inflation, the universe existed in a period called the GUT era where forces were ...

Current satellite operational paradigms result in decommissioning spacecraft when they malfunction or run out of fuel, despite potentially functional components, leading to significant financial and ...

I wake up to a chime from my smartphone. Bleary-eyed, I check it — and jolt awake upon seeing an automated email from the MeerKAT radio telescope in South Africa. The subject line reads: “AT 2018xxx ...

The universe's expansion means its size is bigger than its age suggests. The universe's expansion doesn't have a speed limit like objects within it. Distant galaxies move away from us as space itself ...