Jupiter is the oldest planet in our solar system, an international group of scientists has found.
Is it a case of nature versus nurture when it comes to two 'cousin' exoplanets? In a unique experiment, scientists used NASA's Hubble Space Telescope to study two 'hot Jupiter' exoplanets. Because these planets are virtually the same size and temperature, and orbit around nearly identical stars at the same distance, the team hypothesized that their atmospheres should be alike. What they found surprised them.
New observations about the extreme conditions of Jupiter's weather and magnetic fields by astronomers have contributed to the revelations and insights coming from the first close passes of Jupiter by NASA's Juno mission.
NASA's Juno mission is rewriting what scientists thought they knew about Jupiter specifically, and gas giants in general, according to a pair of Science papers released today. The Juno spacecraft has been in orbit around Jupiter since July 2016, passing within 3,000 miles of the equatorial cloudtops.
Astronomers have uncovered a moon orbiting the third largest dwarf planet, 2007 OR10, in the frigid outskirts of our solar system called the Kuiper Belt.
Researchers have discovered a new planet orbiting a star 320 light years from Earth that has the density of styrofoam. This 'puffy' exoplanet may hold opportunities for testing atmospheres that will be useful when assessing future planets for signs of life.
In the case of solar system bodies passing close to the sun, there are two important effects playing a crucial role in the orbital evolution. One of the effects is from the general relativity and the other effect is from Newtonian theory of gravitation.
Two veteran NASA missions are providing new details about icy, ocean-bearing moons of Jupiter and Saturn, further heightening the scientific interest of these and other "ocean worlds" in our solar system and beyond. Scientists announce that a form of chemical energy that life can feed on appears to exist on Saturn's moon Enceladus, and researchers also report additional evidence of plumes erupting from Jupiter's moon Europa.
A Great Cold Spot comparable in scale to Jupiter's famous Great Red Spot (24,000 km west-east and 12,000 km north-south) has been found on the planet. The phenomenon, only recently observed, may have existed for thousands of years, however, this is the first direct evidence of a sustained weather system generated by polar aurorae and opens possibility on other planets.
A composite image of Uranus by Voyager 2 and two different observations made by Hubble shows one for the ring and one for the auroras found around the planet.
On April 3, 2017, as Jupiter made its nearest approach to Earth in a year, NASA's Hubble Space Telescope viewed the solar system's largest planet in all of its up-close glory.
Researchers have developed a model that suggests that debris that was pushed into space from an asteroid or other body slamming into Mars around 4.3 billion years ago and alternates between becoming a planetary ring and clumping up to form a moon.
Kirby Runyon wants to make one thing clear: regardless of what one prestigious scientific organization says to the contrary, Pluto is a planet. So, he says, is Europa, commonly known as a moon of Jupiter, and so is the Earth's moon, and so are more than 100 other celestial bodies in our solar system that are denied this status under the prevailing definition of 'planet.'
This beautiful Hubble image reveals a young super star cluster known as Westerlund 1, only 15,000 light-years away in our Milky Way neighborhood, yet home to one of the largest stars ever discovered.