Closest comet in 246 years via radar | EarthSky.org

Record-breakingly close flybys of two comets earlier this week. Radar images of one, the closest comet in 246 years. Will the other be visible to the eye?

Source: Closest comet in 246 years via radar | EarthSky.org

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By coulter367

Galileo’s dozen: 12 satellites now in orbit / Launching Galileo / The future – Galileo / Navigation / Our Activities / ESA

The pace of deploying Europe’s own satellite navigation system continued to increase with today’s launch of the latest pair of Galileo satellites, doubling the number of satellites in space within nine months.

Source: Galileo’s dozen: 12 satellites now in orbit / Launching Galileo / The future – Galileo / Navigation / Our Activities / ESA

By coulter367