The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the Universe), states ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

A new take on the origins of Earth’s water claims to reveal the composition of the Earth in the first few million years after ...

China's Tianwen-2 probe took a stunning selfie with Earth on its journey into deep space. But that's only the start of its ...

We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if it's negative?

Would you guess that the Earth is spinning at 1,000 mph around its axis and at the same time hurtling through space on its ...

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

Mon., June 23, 2025 A composite image of the supernova 1E0102.2-7219 contains X-rays from Chandra (blue and purple), visible light data from VLT’s MUSE instrument (bright red), and additional data ...