Fact: There are two moons hiding in this picture. But can you spot them? Are you sure?
This week, the Cassini spacecraft made its fifth and final flyby of Dione, Saturn’s fourth-largest moon. This image, in which Saturn and its rings can be seen looming behind the moon, was captured in the leadup to the mission’s last close approach, on August 17, 2015.
A new theory proposes that Saturn’s outermost ring formed in the wake of an ancient collision between two icy satellites, and that similar collisions may account for comparable ringed structures around other planets.
Recently acquired images of Tethys, one of the ice moons of Saturn, have given scientists their best view yet of several “unusual, arc-shaped reddish streaks” that sweep across the satellite’s surface.
This week on Meanwhile in the Future, we ask what would happen if Earth had a second moon. How exactly that happens I won’t reveal — you’ll have to listen! But once it does, there are some really interesting things that we might notice on Earth, from tides and the night sky, to the potential destruction of Earth.
Aside from having the coolest name for a moon ever, Hyperion is known for its potato-like shape and a surface that looks — and even acts — like a sponge. But as the Cassini spacecraft discovered back in 2005, this Saturnian moon also packs an unexpected punch.
What happens when a planetary scientist has a love for order? He creates code that sorts everything from our solar system’s moons to exoplanets into graceful spirals where every object is slightly smaller than the one before. Astronomical knolling is my new favourite way to contemplate the vast scale of space.
Submoons — satellites of satellites — are theoretically possible. However, they'd suffer the same eventual fate of the things we launch into orbit of our planet: eventual decay of orbit and crash into the planet below. That's a fascinating location to set a story on.
There's a strange bulge on the Solar System's largest moon, one that measures 375 miles wide and nearly two miles tall. Scientists aren't entirely sure why it's there or what caused it, but it may have something to do with the Jovian moon's subsurface ocean.
We all know and love the moon. We're so assured that we only have one that we don't even give it a specific name. It's just The Moon. But the moon is not the Earth's only natural satellite. Here's what you need to know about 3753 Cruithne and what its weird orbit reveals about the solar system.
Eighty-five years ago today, Clyde Tombaugh found a small dot of light shifting position while hunting for the trans-Neptune planet predicted by Percival Lowell. Now, the New Horizons probe en route to Pluto has photographed its tiny moons, Nix and Hydra.
At a recent advanced concepts symposium, NASA scientists unveiled a conceptual plan to explore the frigid methane and ethane seas on Saturn's largest moon, Titan, using a robotic submarine.
Scientists working on NASA's Cassini mission have discovered no less than 101 distinct geysers on Saturn's small icy moon Enceladus. Just as exciting is the possibility that liquid water may be reaching the surface — making Enceladus a major target for future exploration.
New images acquired by Cassini show a bright clump orbiting Saturn at the outermost edge of its outer ring. Astronomers say it could be a brand new moon in the process of being born.
It's turning out that the outer reaches of the solar system may be more hospitable to life than we ever imagined. Gravity measurements made by Cassini have confirmed that Enceladus, a tiny moon orbiting Saturn, hosts a subsurface ocean in its southern latitudes. Astronomers are now saying it's potentially habitable.
Last week, researchers released the first-ever geological map of Ganymede, Jupiter's largest moon. Here's the map again, flattened into a 2D, rectangular map.
Four hundred years ago, Galileo Galilei observed Ganymede in orbit around Jupiter. This week, a team of planetary scientists unveiled the first global geological map of our solar system's largest moon.
It may not look anything like Avatar's Pandora or Jedi's Endor, but if verified, it could be the first moon ever discovered outside our solar system. Located 1,800 light years away, it's a large moon orbiting a planet four times the size of Jupiter. But strangely, the duo isn't even remotely close to a star.
When Curiosity looks up into the sky, what does it see? On August 1st, it saw the Martian moons Phobos and Deimos and was able to capture them in a single image.
When it comes to space, perspective is everything. We've talked about the importance of scale in the past – about how, when separated by millions of miles of space, many objects in our solar system can seem unrelatably gigantic. It's what makes images like this one so eye-opening.