Astronomy

The Sky is Falling!

You may have noticed some fireballs overhead the last few nights. It’s the annual Taurids meteor shower, seen as the Earth passes through the orbit of Comet Encke. This from SpaceWeather.com:

FIREBALL SIGHTINGS: In recent nights, sky watchers have seen some spectacular fireballs. Experts suspect it’s the Taurid meteor shower, a display caused by debris from Comet Encke.
Photo: a Taurid fireball photographed by Hiroyuki Iida of Toyama, Japan on Oct. 28th.

Most years the Taurid shower is weak, producing few meteors, mostly dim. 2005 appears to be different. Earth may be passing through a “swarm” of pebbles and rocks within the larger cloud of Taurid space dust. The pebbles are responsible for the fireballs.

The 2005 Taurid meteor shower is not over. Indeed, it’s just beginning. Forecasters expect the complex shower to peak during the first two weeks of November. So keep an eye on the sky!

Read the full story from Science @ NASA.

Don’t Worry – The Sky Isn’t Falling – Yet

But if it starts to, the European Space Agency will call Don Quixote to the rescue . . .

From Science Daily: ESA Selects Targets For Asteroid-deflecting Mission Don Quijote

Based on the recommendations of asteroid experts, ESA has selected two target asteroids for its Near-Earth Object deflecting mission, Don Quijote.

Don Quijote is an asteroid-deflecting mission currently under study by ESA’s Advanced Concepts Team (ACT). Earlier this year the NEO Mission Advisory Panel (NEOMAP), consisting of well-known experts in the field, delivered to ESA a target selection report for Europe’s future asteroid mitigation missions, identifying the relevant criteria for selecting a target and picking up two objects that meet most of those criteria. The asteroids’ temporary designations are 2002 AT4 and 1989 ML.

Update: Click Here for a visual of the IMPACT!

The Da Vinci Glow

From NASA – The Da Vinci Glow


Da Vinci illustration
When you think of Leonardo Da Vinci, you probably think of the Mona Lisa or 16th-century submarines or, maybe, a certain suspenseful novel. That’s old school. From now on, think of the Moon.

Little-known to most, one of Leonardo’s finest works is not a painting or an invention, but rather something from astronomy: He solved the ancient riddle of Earthshine.

You can see Earthshine whenever there’s a crescent Moon on the horizon at sunset. Thursday, Oct. 6, is a good night: sky map. Look between the horns of the crescent for a ghostly image of the full Moon. That’s Earthshine.