Juno (minor-planet designation: 3 Juno) is a large asteroid in the asteroid belt. Juno was the third asteroid discovered, in 1804, by German astronomer Karl Harding. [15] It is tied with three other asteroids as the thirteenth largest asteroid, and it is one of the two largest stony asteroids, along with 15 Eunomia.

2024年11月6日 · After enduring a five-year, 1.7 billion-mile journey from Earth, and evading showers of the most punishing radiation outside the Sun, Juno has provided breathtaking images and breakthrough discoveries from Jupiter and its moons.

Juno is a NASA space probe orbiting the planet Jupiter. It was built by Lockheed Martin and is operated by NASA 's Jet Propulsion Laboratory. The spacecraft was launched from Cape Canaveral Air Force Station on August 5, 2011 UTC, as part of the New Frontiers program. [6]

The Juno spacecraft, which entered orbit around Jupiter on July 4, 2016, is the first explorer to peer below the planet's dense clouds to answer questions about the gas giant itself and the origins of our solar system.

2015年9月30日 · With the exception of the sun, Jupiter is the most dominant object in the solar system. Because of its enormous size and the fact that it was likely the first of the planets to form, it has profoundly influenced the formation and evolution of the other bodies that orbit our star.

2025年2月5日 · Juno, U.S. space probe designed to orbit the planet Jupiter. It is named for the Roman goddess who is the female counterpart to the god Jupiter. Juno orbits Jupiter every 11 days in a highly elliptical orbit over the planet’s poles.

2025年1月28日 · During its extended mission, Juno’s trajectory passes by Io every other orbit, flying over the same part of the moon each time. Previously, the spacecraft made close flybys of Io in December 2023 and February 2024, getting within about 930 miles (1,500 kilometers) of its surface.The latest flyby took place on Dec. 27, 2024, bringing the spacecraft within about …

NASA’s Juno spacecraft has certainly lived up to its namesake. By gazing beneath Jupiter’s swirling bands, Juno has been able to view the planet’s inner workings in a way no other probe has. Juno seeks to understand Jupiter’s past by studying its present mysteries.

2024年12月12日 · Scientists with NASA’s Juno mission to Jupiter have discovered that the volcanoes on Jupiter’s moon Io are each likely powered by their own chamber of roiling hot magma rather than an ocean of magma. The finding solves a 44-year-old mystery about the subsurface origins of the moon’s most demonstrative geologic features.

2025年1月28日 · The discovery of this massive feature comes courtesy of Juno’s Jovian Infrared Auroral Mapper (JIRAM) instrument, contributed by the Italian Space Agency. “Juno had two really close flybys of Io during Juno’s extended mission,” said the mission’s principal investigator, Scott Bolton of the Southwest Research Institute in San Antonio ...