Space
Scientists Say: Event horizon
Past this boundary, nothing that enters a black hole can ever leave — not even light.
MS-ESS1-2
Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
More Stories in MS-ESS1-2
- Space
They came from other stars! [COMIC]
Only three interstellar objects have ever been spotted. Here’s what we know about them and why they’re so cool.
- Space
This cosmologist studies the invisible parts of the universe
Katie Mack started out building solar-powered LEGO cars as a kid. Now she studies dark matter to better understand how galaxies form and evolve.
- Space
This is the largest, most detailed radio image yet of our Milky Way
Supernova remnants, stellar nurseries and more populate this new view of our galaxy, as seen from Earth’s southern hemisphere.
- Space
Scientists caught a black hole ringing like a bell
Two black holes merged, creating a new, bigger one. This event triggered the clearest ripples in spacetime ever observed.
- Space
Scientists Say: Lagrange point
Between and around a two-body system — such as the Earth and sun — there are five points of prime celestial real estate.
- Space
A passing star could fling Earth out of orbit — or into the sun
Computer models show that a star's tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.
- Space
A nearby star system is likely sending lots of comets our way
This Alpha Centauri system loses comets and dust particles, but it produces only about 10 of the several trillion meteors that Earth sees each year.
- Planets
Pluto and its moon Charon may have paired up with a kiss
After about 30 hours of contact, Charon could have separated from Pluto and drifted into its current orbit.
- Space
Ancient black holes might solve the mystery of dark matter
Studies of gravitational waves, stars and other features of the universe could reveal whether such “primordial” black holes exist.
