Understanding the phases of the Moon | Astronomy.com
WEBAug 30, 2023 · There are eight distinct phases the Moon goes through. Beginning with New Moon, they are: New Moon: The New Moon phase marks the beginning of the lunar cycle. During this phase, the Moon is ...
Earth facts: Size, distance from the Sun, orbit | Astronomy.com
WEBOct 20, 2023 · Earth is the third planet from the Sun and takes 23 hours, 56 minutes to spin on its axis one time. Size: Earth has a diameter of 7,926 miles (12,756 kilometers). Distance from the Sun: Earth is ...
Black holes, explained by an astrophysicist - Astronomy Magazine
WEBDec 11, 2023 · A black hole is a region of universe where gravity is so outrageously strong that nothing, not even light, can escape. Once something enters a black hole by crossing an invisible boundary known as ...
Astronomy Magazine: Space News, Observing, Planets, Galaxies
WEBAstronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes ...
Speed of light: How fast light travels, explained simply and clearly
WEBJan 23, 2024 · On one hand, the speed of light is just a number: 299,792,458 meters per second. And on the other, it’s one of the most important constants that appears in nature and defines the relationship of ...
Planets 101: What they are and how they form | Astronomy.com
WEBOct 18, 2023 · Planets arise from the remnants inside a protoplanetary disk that encircles a nascent star. Dust and gas within such disks slowly sticks together, forming the building blocks of planets, known as ...
Jupiter: Size, distance from the Sun, orbit | Astronomy.com
WEBApr 19, 2024 · Size: Eleven Earths would fit side by side across the face of Jupiter. It is the biggest planet in the solar system, and it has a diameter of 89,000 miles (143,000 kilometers). Distance from the ...
How Did the Big Bang Happen? | Astronomy.com
WEBJul 1, 2019 · The universe cooled rapidly as it blew outward, however, and by 10–35 second after the Big Bang, the epoch of inflation occurred, enlarging the universe by a factor of 1050 in only 10–34 ...
The science behind the Big Bang theory | Astronomy.com
WEBDec 18, 2023 · According to the theories of physics, one second after the Big Bang, the heat of the universe caused atoms to collide with enough force to create a ten billion degree soup of neutrons, protons ...
Earth's future: How the world might end | Astronomy Magazine
WEBOct 19, 2023 · Earth’s oceans will boil. Regardless of other factors, the Sun’s increasing radiation will alter our planet in a fundamental way over the coming few hundred million years. In 1.5 billion years ...