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Articles

Written for readers who want the science without the jargon. Every article lists its sources and distinguishes what is well established from what is still being investigated.

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  Observing15 min read

  Moon Occultation of Jupiter 2026: Daytime Viewing and September Event Guide

  The Moon occulted Jupiter on September 8, 2026, during daylight for much of North America. Learn what happened, where occultations are visible and how to observe planets safely in daytime.

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  Solar System15 min read

  Saturn's Decagonal Cloud: Hubble Finds a 10-Sided South Pole Structure

  Hubble observations reveal a huge evolving 10-sided atmospheric wave around Saturn's south pole. Learn how the decagon differs from Saturn's north-pole hexagon and what may create it.

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  Deep Space16 min read

  Do Black Holes Grow With the Universe? Expansion Theory Explained

  Do black holes grow with the universe? Explore normal black-hole growth, cosmological coupling, evidence, objections, dark-energy claims and why early supermassive black holes became so large.

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  Solar System15 min read

  Halley's Comet 2061 Return and Proposed Rendezvous Mission

  When will Halley's Comet return? Explore its predicted 2061 perihelion, proposed spacecraft rendezvous concepts, difficult orbit, mission technologies and lessons from the 1986 Halley Armada.

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  Solar System22 min read

  Venus Planet: Facts About the Hottest Planet

  Explore Venus facts, why Venus is the hottest planet, how its size compares with Earth, and how to find out if Venus is visible tonight.

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  Solar System8 min read

  Uranus Planet: Complete Guide to the Sideways Ice Giant

  Explore Uranus facts, its sideways rotation, rings, moons, size, distance, temperature, blue-green color, and how to see Uranus tonight.

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  Solar System10 min read

  Saturn Planet: Complete Guide to the Ringed Planet

  Explore Saturn facts, its rings, size, moons, temperature, distance, atmosphere, Titan, Cassini mission, and how to see Saturn tonight.

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  Solar System8 min read

  Neptune Planet: Complete Guide to the Windy Blue Ice Giant

  Explore Neptune facts, its powerful winds, blue atmosphere, distance, size, temperature, rings, Triton, and how to see Neptune tonight.

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  Deep Space15 min read

  Nancy Grace Roman Space Telescope Launch: Date, SpaceX Rocket and Mission Goals

  NASA's Nancy Grace Roman Space Telescope launched aboard SpaceX Falcon Heavy on August 30, 2026. Explore its mission, instruments, dark-energy science and Hubble comparison.

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  Solar System23 min read

  Mercury Planet: Facts About the Smallest Planet

  Explore Mercury planet facts, its distance from the Sun, extreme temperatures, small size, surface, atmosphere, orbit, and space missions.

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  Solar System13 min read

  Mars Planet: Complete Guide to the Red Planet

  Explore Mars facts, its distance from Earth and the Sun, temperature, size, moons, water, surface, atmosphere, rovers, and possibility of life.

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  Solar System9 min read

  Jupiter Planet: Facts About the Largest Planet

  Explore Jupiter facts, its enormous size, distance, temperature, Great Red Spot, rings, atmosphere, moons, and missions to the largest planet.

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  Solar System13 min read

  Earth Planet: Facts About Our Living World

  Explore Earth facts, its size, distance from the Sun, atmosphere, oceans, Moon, temperature, rotation, climate, and why Earth supports life.

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  Deep Space15 min read

  Vera C. Rubin Observatory Images: COSMOS Field and LSST Camera Explained

  Explore Vera C. Rubin Observatory's first LSST Camera science image and catalog release, its deep COSMOS field view, engineering tests, 3.2-gigapixel camera and LSST survey goals.

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  Deep Space5 min read

  Hubble and Gaia Uncover the Milky Way's Earliest Major Collision

  Astronomers combining Hubble and Gaia data discovered evidence of an ancient galactic merger that shaped the young Milky Way nearly 12 billion years ago

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  Deep Space6 min read

  Dust and Water Near a Black Hole Found by Webb Telescope

  Astronomers used the James Webb Space Telescope to detect dust and water near a black hole at the center of the Milky Way galaxy in the shell of star IRS 3

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  Deep Space2 min read

  What We Really Know About Black Holes

  A grounded overview of what black holes are, how astronomers detect them, and what is still uncertain.

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  Observing2 min read

  A Beginner's Guide to the Night Sky

  How to enjoy stargazing without a telescope, and what to look for over the next few months.

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  Exoplanets2 min read

  How Astronomers Find Exoplanets

  A plain-language tour of the main ways scientists discover planets orbiting other stars.