Just about the time that one NASA spacecraft is closing in on Ceres (formerly known as an asteroid, now semi-officially designated as a dwarf planet) and another nears its encounter with Pluto, a group of astronomers has suggested that there…
Tag: Vesta
Survivor
The formation of our solar system, with multiple planets and other bodies of varying sizes and compositions—this was not a simple process. The more planetary systems we discover around other stars, the more we confirm the truth of this. Scientists…
Astronomy in 2011
(This post has been edited slightly from the original to include the MESSENGER mission to Mercury and to correct a misstatement about galactic black holes.) As the end of calendar year 2011 approaches, I thought my readers might enjoy a look…
Tagged with: black holes, Dawn, Exoplanets, Kepler, Mars, SN 2011fe, space launch system, space shuttle, spaceship two, Vesta
Pluto Has A New Moon
…which now makes four and counting. The new discovery comes via an eight-minute exposure (long in this context) of Pluto and its environs with the Hubble Space Telescope. Here is an image that may be a little different from what…
Ceres, Vesta and Dawn
On the very first day of the nineteenth century, January 1, 1801, a moving star-like object was discovered by Giuseppe Piazzi in Sicily. Initially thought to be a comet and then a new planet, Ceres was eventually recognized as the…
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