Mercury: Facts about the smallest planet | Live Science
May 15, 2022 — Mercury is the closest planet to the sun and the smallest planet in our solar system. With a diameter of about 3,032 miles (4,880 kilometers), Mercury is less than half the size of Earth, which is ...
What are photons? | Live Science
Mar 10, 2022 — Photons are fundamental subatomic particles that carry the electromagnetic force — or, in simpler terms, they are light particles (and so much more). The photon is also the "quantum," or ...
35 jaw-dropping James Webb Space Telescope images
Feb 22, 2024 — The cutting-edge, $10 billion James Webb Space Telescope (JWST) shared its debut image with the world on July 12, 2022, peering deeper into the universe than any telescope before it. Since then ...
Temperature: Fahrenheit, Celsius, Kelvin | Live Science
Mar 22, 2021 — Conversion formulas. Celsius to Fahrenheit: Multiply by 9, divide by 5, then add 32. Fahrenheit to Celsius: Subtract 32, then multiply by 5, then divide by 9. Celsius to Kelvin: Add 273. Kelvin to ...
What is multiverse theory? | Live Science
Aug 23, 2021 — Here’s how it works. Multiverse theory suggests that our universe, with all its hundreds of billions of galaxies and almost countless stars, spanning tens of billions of light-years, may not be ...
What is a singularity? | Live Science
Oct 27, 2021 — Paul received his PhD in Physics from the University of Illinois at Urbana-Champaign in 2011, and spent three years at the Paris Institute of Astrophysics, followed by a research fellowship in ...
9 things we learned about aliens in 2021 | Live Science
Dec 28, 2021 — Here are 9 things we learned about aliens (and where to look for them) in 2021. 1. UFOs are real (and the government knows it) (Image credit: Bettmann/Getty Images) In June, the Pentagon released ...
What is the universe? | Live Science
May 3, 2022 — The universe is literally everything, the sum of all existence. It includes all matter, like stars and galaxies. The universe also includes all radiation and all other forms of energy. No matter ...
World Wide Web: Definition, history and facts | Live Science
Mar 31, 2022 — Creating WWW. Before the invention of the World Wide Web (WWW), the earliest internet users were mainly researchers and military personnel. The network was complicated and, although it was ...
The solar system: Facts about our cosmic neighborhood
Feb 25, 2022 — The solar system is a collection of planets, moons, asteroids, comets, dust and gas that orbit our local star, the sun. It includes the rocky inner planets Mercury, Venus, Earth and Mars; the gas ...