Possible first sighting of an exomoon

(Phys.org)—A team led by David Kipping of Columbia University has spotted what might be the first evidence of an exomoon. They have written a paper describing their findings and have uploaded it to the arXiv preprint server.

Does Mars have rings? Not right now, but maybe one day

As children, we learned about our solar system's planets by certain characteristics—Jupiter is the largest, Saturn has rings, Mercury is closest to the sun. Mars is red, but it's possible that one of our closest neighbors ...

Hubble discovers moon orbiting the dwarf planet Makemake

Peering to the outskirts of our solar system, NASA's Hubble Space Telescope has spotted a small, dark moon orbiting Makemake, the second brightest icy dwarf planet—after Pluto—in the Kuiper Belt.

New study finds 'geologic clock' that helps determine Moon's age

An international team of planetary scientists determined that the Moon formed nearly 100 million years after the start of the solar system (4.470 billion years ago), according to a paper to be published April 3 in Nature. ...

Hubble finds new Neptune moon

(Phys.org) —NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.

Three planets in habitable zone of nearby star (w/ video)

(Phys.org) —A team of astronomers has combined new observations of Gliese 667C with existing data from HARPS at ESO's 3.6-metre telescope in Chile, to reveal a system with at least six planets. A record-breaking three of ...

page 2 from 18