Understanding the phases of the Moon | Astronomy.com
Aug 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 ...
Planets 101: What they are and how they form | Astronomy.com
Oct 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 ...
Black holes, explained by an astrophysicist - Astronomy Magazine
Dec 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 ...
Jupiter: Size, distance from the Sun, orbit | Astronomy.com
Apr 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 ...
Everything you need to know about the Moon | Astronomy.com
Sep 7, 2023 · The Moon’s average distance from Earth is about 238,900 miles (384,400 km). However, this distance is not constant, as the Moon follows an elliptical orbit around Earth. When the Moon is closest ...
Speed of light: How fast light travels, explained simply and clearly
Jan 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 ...
Earth's future: How the world might end | Astronomy Magazine
Oct 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 ...
The Sun: Facts, size, and fate of Earth’s blazing star
Oct 18, 2023 · With a diameter of some 864,000 miles (1.39 million km), the Sun dwarfs any other object in our solar system. In fact, you could fit about 1.3 million Earths inside it. However, despite its ...
Astronomy Magazine: Space News, Observing, Planets, Galaxies
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes ...
How long is a year on other planets? - Astronomy Magazine
Nov 22, 2023 · Here’s a look at how long a year is on each of the planets, in Earth days: Mercury – 88 Earth days. Venus – 225 Earth days. Earth – 365 days. Mars – 687 Earth days. Jupiter – 4,331 ...