Artist’s concept of the New Horizons spacecraft during its planned encounter with Pluto and its moon Charon in 14 July 2015. New Horizons has just completed a major milestone in its mission by crossing the orbit of Neptune on Aug. 25, exactly a quarter-of-a-century after Voyager 2 flew by the ice giant planet in [...]
Discovery images of the two Kuiper Belt Objects named 1110113Y and 0720090F respectively, taken with NASA’s Hubble Space Telescope. The image at left shows the first KBO at an estimated distance of approximately 4 billion miles from Earth. Its position noticeably shifts between exposures taken approximately 10 minutes apart. The image at right shows [...]
An artist’s rendering of the New Horizons spacecraft, encountering a Kuiper Belt Object during its extended mission following its Pluto flyby. The Hubble space telescope has started searching for a suitable KBO so that the spacecraft’s extended mission can take place. Image Credit: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI)
With the [...]
A computer-generated impression of the view from the surface of Pluto. The Sun looks like a very bright star on the sky (upper right), while Charon, Pluto’s biggest satellite, looms large near the horizon (at left). Next year, NASA’s New Horizons mission will replace our artistic impressions of the planet and its moons with [...]
Artist’s conception of Pluto and Charon. Image Credit: ESO
Atmospheres are, of course, a common feature of planets and even some moons. Most of the planets in our Solar System and a few moons have their own unique atmospheres, but now there may be evidence for something new: a shared atmosphere between a planet [...]
A team of astronomers using ESA’s Herschel Space Observatory have discovered clear signals of water vapour coming off Ceres. Image Credit: ESA/ATG medialab/Küppers et al.
A new study published online in the weekly scientific journal Nature on Jan. 22 reports on observations made by the Herschel Space Observatory of water vapour seen coming out [...]
A Hubble Space Telescope image of Pluto and some of its moons. The New Horizons mission is just a year away from providing us with photographs that will greatly surpass the best images of Pluto that Hubble could ever capture. Image Credit: NASA, ESA, H. Weaver (JHU/APL), A. Stern (SwRI), and the HST Pluto [...]
Two newly discovered moons orbiting Pluto have been given official names by the International Astronomical Union. Image Credit: NASA / STSci
Two of Pluto’s small moons, previously known just as P4 and P5, have been given official names by the International Astronomical Union (IAU). Pluto is the god of the underworld in classical mythology, [...]
Neptune’s largest moon, Triton, seen here in an image from the Voyager 2 flyby, is thought to be a captured Kuiper Belt Object. Photo Credit: NASA.
Starting at about the orbit of Neptune and stretching out to roughly 50 astronomical units (1 AU = Earth-Sun distance), or 7.5 billion kilometers from the Sun, is [...]