Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

Scientists have hypothesized since the 1960s that the sun is a source of ingredients that form water on the moon. When a ...

Solar eclipses have fascinated observers for thousands of years. The ancient Greek philosopher Aristotle pointed to the round ...

Apr. 15, 2025 — A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune ... if life exists on the moon, according to a study ... Solar Wave Squeezed Jupiter's ...

A solar eclipse occurs when the moon is positioned between Earth and the sun and casts a shadow over Earth. Solar eclipses only occur during a new moon phase, usually about twice a year ...

The Sweden Solar System is the largest scale model of the Solar System in existence, and it spans the entire Swedish ...

Multiple spacecraft captured the moon's shadow sweeping across North America at more than 1,500 mph during the 2024 total ...

Here on Earth, these solar cells are plagued by issues with instability, largely due to environmental degradation from moisture and oxygen. While some of these problems are absent on the moon ...

A partial solar eclipse is when the moon comes between the Earth and the sun, casting a shadow on our planet without fully blocking out the sun. The moon will produce a striking crescent sun at ...