Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

The study says that large cosmological surveys like Euclid and DESI can provide hints of new physics by looking at billions ...

Gravity, electromagnetism, the strong nuclear force, the weak nuclear force. For decades, physicists have recognized exactly ...

The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

For decades, physicists have believed they had identified the fundamental forces shaping the universe, gravity, ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

Easy: Venus is the weirdest planet in the solar system. The most distant major planet from the sun and the last stop before ...