Space
Comets may be the source of sandy dunes on Saturn’s largest moon
In an early reshuffling of the solar system, comet collisions and other space rocks could have sent dusty bits falling to Titan’s surface.
By Nikk Ogasa
HS-ESS1-4
Use mathematical or computational representations to predict the motion of orbiting objects in the solar system.
More Stories in HS-ESS1-4
- Physics
A new tool shows tiny changes in the ’24-hour’ length of a day
An underground instrument known as ‘G’ uses laser beams to measure Earth’s rotation — a gauge of day length — with extreme precision.
- Planets
Analyze This: Neptune’s cloud cover syncs up with the solar cycle
Telescope observations hint how sunlight-driven chemistry may boost cloud cover on our solar system’s farthest planet.
- Space
You can get involved in science during the 2024 solar eclipse
The sun will be near the peak of its activity cycle during the eclipse on April 8, 2024. That will make it a great time to crowdsource solar research.
- Space
Weird black holes may reveal secrets of the early universe
Emerging evidence points to the existence of rogue black holes and other cosmic oddities — such as big black holes in tiny galaxies.
- Planets
Research on exoplanets took top award at 2023 Regeneron ISEF
Six young researchers took home the top awards, each valued at a minimum of $50,000. Hundreds more shared nearly $9 million in prizes at international event.
- Tech
A new solar-powered gel purifies water in a flash
The unusual, fruit-inspired structure of this material provides quick filtration that could satisfy people's daily water needs.
- Space
Scientists Say: Accretion Disk
Cosmic swirls of gas, dust and plasma, accretion disks reveal the shadowy silhouettes of black holes and more.
- Planets
Planets like Star Wars’ Tatooine could be fit for life
Like Luke Skywalker’s home, planets orbiting two stars may be plentiful. A new computer model suggests that many of those worlds could sustain life.
- Earth
Scientists Say: Equinox and Solstice
Equinoxes and solstices mark the maximums, minimums and mediums of hours spent in daylight.
