When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But mitigating this is its far greater distance, plus the fact that Earth appears much ...

It wasn’t a glossy colour postcard or a carefully planned shot. Instead, it was a grainy black-and-white image, sent across space in 1966, that completely transformed how humanity saw itself. On ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the satellites we use for navigation, communication and Earth observation every ...

The James Webb Space Telescope's (JWST) latest extragalactic survey has revealed fainter and more distant objects than ever before, some dating back to the earliest periods of the universe. But it ...

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

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 ...

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