Of the four known giant planets in our solar system, Jupiter is by far the largest. It is wider than 11 Earths side by side and has more mass than all the other seven planets combined. It is made up mostly of hydrogen and helium and has strong winds and storms.
On April 7, 2017, New Horizons entered a 157-day-long hibernation. New Horizons is an interplanetary space probe and is NASA’s first mission to Pluto and the Kuiper Belt. After operating steadily for almost two and a half years, the spacecraft and its systems deserve this much-needed break.
The Cassini spacecraft has spent almost 13 years exploring the beautiful giant planet Saturn and its amazingly diverse moons. Cassini’s mission will end in September when it plunges into Saturn’s atmosphere, but it will leave behind a wealth of knowledge and wonder.
Dr. Tom Barclay is a senior research scientist at NASA Ames Research Center. He spends his days studying stars and planets and how they formed. But before he became a scientist, he had all kinds of jobs from cleaning toilets to washing pots. He’s got some great advice about finding your own path.
Hunting for exoplanets is an exciting field as more and more worlds are discovered. Many of these newly discovered planets are in the "Goldilocks Zone" where conditions may be right to support life. Dr. Hannah Wakeford is on the cutting edge of this research.
A human mission to Mars will take anywhere from two and a half to three years. That is NASA’s best estimate, with each leg of the trip taking six months and including an 18 to 20 month stay on the Red Planet. That does not sound like an extremely long-term prospect until one considers the fact that the world record for the longest single stay in Earth orbit belongs to Soviet cosmonaut and physician Valeri Poliakov at 437 days and 18 hours aboard the Mir space station in 1994-1995. That is less than half the time it would take to complete a mission to Mars.
At the Observatory, we often get the question “What telescope should I buy?” But once you have one, what do you do with it? Maybe it’s still in the box, perhaps you found it frustrating to use, or maybe you’re ready to hunt for more advanced targets. If that sounds like you, it’s time to go to a telescope clinic!
It's 5 o'clock somewhere on Mars!
No human has ever set foot on Mars, but scientists have been working there for years. A day on the red planet is about 40 minutes longer than here on Earth, which wreaks havoc on your workweek.
The balloon was a product of the scientific revolution of the 17th and 18th centuries. Early modern experimenters like the Englishman Robert Boyle, studied the physics of the atmosphere. By the 18th century the focus shifted to the discovery of the constituent gases that make up the atmosphere. Early plans for flying machines inspired by the new discoveries were impractical, but quickly gave way to the first real balloons.