Learn about an annular solar eclipse or ring of fire eclipse. See how it works, how to view it safely, and when upcoming eclipses occur. Annular Solar Eclipse – The Ring of Fire Recently updated ! This entry was posted on September 24, 2023 by Anne Helmenstine (updated on September 24, 2023)
Discover what a solar flare is, how it works, and what its effects are on Earth and space. Get examples of large solar flares. What Is a Solar Flare? This entry was posted on August 19, 2023 by Anne Helmenstine (updated on August 29, 2023)
Learn whether Pluto is a planet and understand the differences between planets and dwarf planets. See what Pluto has in common with comets. Is Pluto a Planet? This entry was posted on July 30, 2023 by Anne Helmenstine (updated on August 6, 2023)
Learn the reasons why space is black and how scientists resolve Olber's paradox about how we don't see a sky full of stars. Why Is Space Black? Olber’s Paradox and the Cosmic Night ... This entry was posted on June 28, 2023 by Anne Helmenstine (updated on July 8, 2023)
Get Oort Cloud facts. Learn about its location and size, the objects it may contain, and how scientists study it. Oort Cloud Facts and Location This entry was posted on June 27, 2023 by Anne Helmenstine (updated on July 8, 2023)
Learn what dark matter is. See the evidence for its existence and learn about research aimed at exploring its nature and properties. What Is Dark Matter? This entry was posted on June 21, 2023 by Anne Helmenstine (updated on September 17, 2023)
Learn about the Drake equation and how it estimates the odds of finding intelligent extraterrestrial life. See the range of values. Drake Equation – Odds of Finding Intelligent Extraterrestrials This entry was posted on May 20, 2023 by Anne Helmenstine (updated on May 27, 2023)
Learn how old the universe is and how we know its age. Learn about two methods cosmologists use in determining time since the Big Bang. How Old Is the Universe? How Do We Know? This entry was posted on April 29, 2023 by Anne Helmenstine (updated on May 9, 2023)
Get total solar eclipse facts, including a list of upcoming total eclipses, the stages of the eclipse, and special features to see. Total Solar Eclipse – Diamond Ring Effect, Baily’s Beads, and ... This entry was posted on March 22, 2023 by Anne Helmenstine (updated on August 19, 2023)