MS-ESS1-3
Analyze and interpret data to determine scale properties of objects in the solar system.
- Physics
Scientists Say: Doppler effect
The Doppler effect is a perceived change in the frequency of light or sound waves due to the wave source moving relative to an observer.
- Tech
Space trash could kill satellites, space stations — and astronauts
As private companies prepare to sprinkle space with tens of thousands of satellites, experts worry about the mushrooming threat of space junk.
- Physics
Scientists Say: Dark Energy
Dark energy is the unknown force causing the universe to expand faster and faster.
- Physics
Wild art? No, it’s a radio image of the heart of our Milky Way
Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.
- Physics
Explainer: Telescopes see light — and sometimes ancient history
Different kinds of telescopes on Earth and in space help us to see all wavelengths of light. Some can even peer billions of years back in time.
- Planets
The long-awaited James Webb Space Telescope has a big to-do list
The James Webb Space Telescope has been in the works for so long that new fields of science have emerged for it to study.
- Space
Scientists Say: Solar wind
This is a powerful gust of charged particles that flows out from the sun through the solar system.
- Planets
Astronomers may have found first known planet in another galaxy
The spiral-shaped Whirlpool galaxy may be home to the first planet spotted outside our own Milky Way galaxy.
- Space
Explainer: Calculating a star’s age
Scientists can figure out a star's mass or composition pretty easily. Determining how old that star is, however, is a lot harder.
- Planets
Pluto is no longer a planet — or is it?
In the 15 years since Pluto lost its status as a planet, some scientists continue to use whatever definition works best for them.
- Space
Here’s an easier new way to weigh a black hole
The timing of flickers in the gas and dust of a black hole’s accretion disk correlates to its mass, a new study finds.
- Earth
Let’s learn about meteor showers
Meteor showers happen when Earth’s orbit passes through trails of debris left behind by comets or asteroids.
