Space in 2-minute reads. Every article ends with two quick questions, so what you read sticks.
Black Holes6 articles · 3 in full on the site
Why light can't escape a black hole2 min · quiz at the endWhere Black Holes Come From2 min · quiz at the endWhat Happens Inside a Black Hole2 min · quiz at the endWhat Happens at a Black Hole's Edgein the appHow We Photographed a Black Holein the appWhat Is Hawking Radiationin the app
Take the “Black Holes” quizLife in the Universe6 articles · 3 in full on the site
Are You Really Made of Stardust?2 min · quiz at the endWhy We Still Haven't Found Aliens2 min · quiz at the endWhere Are the Aliens If There Are Billions of Stars2 min · quiz at the endWhat Life Without Water Would Be Likein the appHow Many Civilizations Could Be in the Galaxyin the appWhere to Look for Life in the Solar Systemin the app
Take the “Life in the Universe” quizBody in Space6 articles · 3 in full on the site
Why Astronauts See Flashes of Light2 min · quiz at the endWhy astronauts get taller2 min · quiz at the endWhat Happens to Your Body in Weightlessness3 min · quiz at the endWhy It's Hard to Walk After a Spaceflightin the appHow You Sleep in Orbitin the appWhat Is Space Sicknessin the app
Take the “Body in Space” quizThe Moon5 articles · 3 in full on the site
Why Tides Are Linked to the Moon2 min · quiz at the endWhere the Moon Came From2 min · quiz at the endWhat People Left on the Moon2 min · quiz at the endWhy the Moon always shows one facein the appWhat Is the Moon Illusion?in the app
Take the “The Moon” quizMars5 articles · 3 in full on the site
Why Mars Is Red2 min · quiz at the endHow Martian Days Differ from Earth's2 min · quiz at the endWas There Water on Mars2 min · quiz at the endWho Came Up with the Canals on Marsin the appWhat Is Keeping People from Flying to Marsin the app
Take the “Mars” quizThe Sun5 articles · 3 in full on the site
Why the Sun Went Quiet for 70 Years2 min · quiz at the endWhy the Sun Has Solar Flares2 min · quiz at the endWhat Happens Inside the Sun2 min · quiz at the endHow the Solar Wind Affects Earthin the appWhat Will Happen to the Sun in Billions of Yearsin the app
Take the “The Sun” quizStars5 articles · 3 in full on the site
Why, when you look at the stars, you see the past2 min · quiz at the endWhy Stars Twinkle but Planets Don't2 min · quiz at the endHow Stars Are Born2 min · quiz at the endWhy stars are different colorsin the appWhat remains after a star explodesin the app
Take the “Stars” quizOur Planetary Neighbors7 articles · 4 in full on the site
Why a Day on Mercury Is Longer Than a Year2 min · quiz at the endWhy Pluto Stopped Being a Planet2 min · quiz at the endWhy Saturn Has Rings2 min · quiz at the endWhat Is That Spot on Jupiter2 min · quiz at the endWhy Venus Is Hellishly Hotin the appWhy Uranus Lies on Its Sidein the appDo Gas Giants Have a Solid Surface?in the app
Take the “Our Planetary Neighbors” quizThe Beginning of the Universe6 articles · 3 in full on the site
How We Know the Age of the Universe2 min · quiz at the endWhat Came Before the Big Bang2 min · quiz at the endWhat the Big Bang really was2 min · quiz at the endWhy the Night Sky Is Dark Instead of Whitein the appWhy the Universe Is Expandingin the appWhere Did the Antimatter Go?in the app
Take the “The Beginning of the Universe” quizAstronauts5 articles · 3 in full on the site
How Astronauts Are Selected2 min · quiz at the endHow Astronauts Return to Life on Earth2 min · quiz at the endWhat Is the Overview Effect?2 min · quiz at the endWhat You Eat in Orbitin the appWhat Astronauts Do in Their Free Timein the app
Take the “Astronauts” quiz