MS-PS4-2
Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
- Tech
A tool as small as a human cell can scan for contaminants and more
Tiny spectrometers might someday show up on smart devices. They could help people scan for ingredients or contaminants in foods and other materials.
- Chemistry
Scientists Say: Fluorescence
This property causes materials — including some animals’ skin, fur or feathers — to glow under light.
- Materials Science
These fabrics change color as they stretch
Stretchy, color-shifting cloth may lead to new art, fashions and sensors. A century-old Nobel-prize-winning invention served as its inspiration.
- Planets
Check out the first direct look at Neptune’s rings since the ’80s
The Voyager 2 spacecraft took the first pics of Neptune’s rings 33 years ago. Now, NASA’s James Webb telescope is providing a more detailed view of them.
- Physics
Cosmic timeline: What’s happened since the Big Bang
Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.
- Space
Scientists Say: Telescope
Almost everything we know about the universe around us, we know thanks to telescopes.
- Earth
One 2022 tsunami may have been as tall as the Statue of Liberty
A massive volcanic eruption in the South Pacific, earlier this year, appears to have triggered one tsunami that was initially 90 meters (nearly 300 feet) tall.
- Space
Amateur astronomers reveal clues to a mysterious double aurora
Stunning images from citizen scientists show an unusual pattern in ‘Northern Lights.’ They offer clues that may help astronomers better understand a curious red glow.
- Chemistry
Scientists Say: Pigment
From fruits to fur to fine art, many materials get their colors from compounds called pigments.
- Science & Society
Let’s learn about music
Researchers are delving into how instruments and spaces shape our experience of music, and how computers could play a role in the future of music-making.
- Physics
Scientists used lasers to make ‘smoke rings’ of light
Physicists had a bright idea: Make light into swirling, ring-shaped vortices, similar to smoke rings or bubble rings.
- Planets
Noises sound totally different on Mars than on Earth. Here’s why
The Perseverance rover recorded the sound of laser pulses on Mars. Scientists used those recordings to determine the Martian speeds of sound.
