According to the Big Bang theory, normal matter composed of protons, neutrons, and electrons should account for roughly 5% of ...

For more than three months, a pair of observatories, positioned on either side of the Sun, managed to track an active region ...

Astronomers discovered a "quasi-satellite" of Earth, also known as a "quasi-moon," dubbed 2025 PN7 in 2025. NASA told Snopes ...

Observations of ultra-massive galaxies, each containing more than 100 billion stars, show that less than 2 billion years ...

Astronomers have seen spacetime itself wobble near a spinning black hole for the first time. The discovery, revealed during a star’s destruction, confirms a major prediction of Einstein’s theory of ...