Impossible asteroid siblings

Impossible asteroid siblings

Combining precise observations obtained by ESO's Very Large Telescope with those gathered by a network of smaller telescopes, astronomers have described in unprecedented detail the double asteroid…
Memories of a dedicated scientist

Memories of a dedicated scientist

From Mary, in response to my request for more information about the scientists who gave us the YORP effect: "O'Keefe was my father. He was also responsible for discovering that the earth is (slightly…
Cassini captures bizarre hexagon on Saturn

Cassini captures bizarre hexagon on Saturn

An odd, six-sided, honeycomb-shaped feature circling the entire north pole of Saturn has captured the interest of scientists with the Cassini mission. This atmospheric feature was already imaged by…
Fingerprinting the Milky Way

Fingerprinting the Milky Way

Using ESO's Very Large Telescope, an international team of astronomers has shown how to use the chemical composition of stars in clusters to shed light on the formation of our Milky Way. This…
New views of Saturn

New views of Saturn

The Hubble Space Telescope (HST) has produced some of the most famous still images in astronomy (e.g., the pillars of creation in the Eagle Nebula). The latest images from HST are movies of…
Seas On Titan

Seas On Titan

Instruments on NASA's Cassini spacecraft, part of the joint NASA/ESA/ASI Cassini-Huygens mission to Saturn and its moons, have found evidence for seas, likely filled with liquid methane or ethane,…