Astronomy Magazine: Space News, Observing, Planets, Galaxies
5 days ago · Astronomy.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
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 ...
2024 solar eclipse: Path, times, how and where to see it
Apr 8, 2024 · The Moon’s penumbra first touches Earth at 11:42 a.m. EDT and last contacts it at 4:52 p.m. EDT. The total phase of the eclipse begins at 12:39 p.m. EDT, a bit more than 620 miles (998 km) south ...
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 ...
The science behind the Big Bang theory | Astronomy.com
Dec 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 ...
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 ...
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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 ...
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 ...
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 ...