moons

SOFIA Uncovers Clues to the Evolution of Universe and Search for Life

SOFIA Uncovers Clues to the Evolution of Universe and Search for Life

A compilation of scientific results from The Stratospheric Observatory for Infrared Astronomy, SOFIA, reveal new clues to how stars form and galaxies evolve, and closer to understanding the environment of Europa and its subsurface ocean. The airborne observatory carries a suite of instruments, each sensitive to different properties of infrared light, that gives astronomers insights into the flow of matter in galaxies.

Cassini Finds Saturn Moon Has 'Sea Level' Like Earth

Cassini Finds Saturn Moon Has 'Sea Level' Like Earth

Saturn’s moon Titan may be nearly a billion miles away from Earth, but a recently published paper based on data from NASA’s Cassini spacecraft reveals a new way this distant world and our own are eerily similar. Just as the surface of oceans on Earth lies at an average elevation that we call “sea level,” Titan’s seas also lie at an average elevation.

Saturn’s moon Titan may harbour simple life forms – and reveal how organisms first formed on Earth

Saturn’s moon Titan may harbour simple life forms – and reveal how organisms first formed on Earth

How chemical reactions on a lifeless planet floating around in the cold darkness of space can suddenly give rise to living organisms is one of the biggest questions in science. We don’t even know whether the molecular building blocks of life on Earth were created here or whether they were brought here by comets and meteorites.

Jets from a Distance

Jets from a Distance

Enceladus' intriguing south-polar jets are viewed from afar, backlit by sunlight while the moon itself glows softly in reflected Saturn-shine.Observations of the jets taken from various viewing geometries provide different insights into these remarkable features. Cassini has gathered a wealth of information in the hopes of unraveling the mysteries of the subsurface ocean that lurks beneath the moon's icy crust.

Cassini Finds Saturn Moon May Have Tipped Over

Cassini Finds Saturn Moon May Have Tipped Over

Saturn's icy, ocean-bearing moon Enceladus may have tipped over in the distant past, according to recent research from NASA's Cassini mission. Researchers with the mission found evidence that the moon's spin axis -- the line through the north and south poles -- has reoriented, possibly due to a collision with a smaller body, such as an asteroid.

Hubble Spots Moon Around Third Largest Dwarf Planet

Hubble Spots Moon Around Third Largest Dwarf Planet

The combined power of three space observatories, including NASA's Hubble Space Telescope, has helped astronomers uncover a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10. The pair resides in the frigid outskirts of our solar system called the Kuiper Belt, a realm of icy debris left over from our solar system's formation 4.6 billion years ago.

Europa Lander Could Carry a Microphone and 'Listen' to the Ice to Find Out What's Underneath

Europa Lander Could Carry a Microphone and 'Listen' to the Ice to Find Out What's Underneath

Between the Europa Clipper and the proposed Europa Lander, NASA has made it clear that it intends to send a mission to this icy moon of Jupiter in the coming decade. Ever since the Voyager 1 and 2 probes conducted their historic flybys of the moon in 1973 and 1974 – which offered the first indications of a warm-water ocean – scientists have been eager to peak beneath the surface and see what lies within.

The bubbly streams of Titan

The bubbly streams of Titan

Saturn’s largest Moon, Titan, is the only other world in our Solar System that has stable liquid on its surface. That alone, and the fact that the liquid is composed of methane, ethane, and nitrogen, makes it an object of fascination. The bright spot features that Cassini observed in the methane seas that dot the polar regions only deepen the fascination.

Why Doesn't Earth Have Rings?

Why Doesn't Earth Have Rings?

Before we really get started on today’s episode, I’d like to share a bunch of really cool pictures created by my friend Kevin Gill. Kevin’s a computer programmer, 3-D animator and works on climate science data for NASA. And in his spare time, he uses his skills to help him imagine what the Universe could look like. For example, he’s mapped out what a future terraformed Mars might look like based on elevation maps, or rendered moons disturbing Saturn’s rings with their gravity.

How do we colonize Jupiter's Moons?

How do we colonize Jupiter's Moons?

In 1610, Galileo Galilei became the first astronomer to discover the large moons of Jupiter, using a telescope of his own design. At time passed, these moons – Io, Europa, Ganymede and Callisto – would collectively come to be referred to as the Galilean Moons, in honor of their discoverer. And with the birth of the space exploration, what we’ve come to know about these satellites has fascinated and inspired us.

How many moons does our solar system have?

How many moons does our solar system have?

For millennia, human beings stared up at the night sky and were held in awe by the Moon. To many ancient cultures, it represented a deity, and its cycles were accorded divine significance. By the time of Classical Antiquity and the Middle Ages, the Moon was considered to be a heavenly body that orbited Earth, much like the other known planets of the day (Mercury, Venus, Mars, Jupiter, and Saturn).

Four Months after Pluto Flyby, NASA’s New Horizons Yields Wealth of Discovery

Four Months after Pluto Flyby, NASA’s New Horizons Yields Wealth of Discovery

From possible ice volcanoes to twirling moons, NASA’s New Horizons science team is discussing more than 50 exciting discoveries about Pluto at this week’s 47th Annual Meeting of the American Astronomical Society’s Division for Planetary Sciences in National Harbor, Maryland.