Trajectory

 

Mercury-Redstone 3 Launch

2021 May 7

Astronomy Picture of the Day: The Unexpected Trajectory of Interstellar Asteroid 'Oumuamua

Why is 'Oumuamua differing from its expected trajectory? Last year, 1I/2017 U1 'Oumuamua became the first known asteroid from interstellar space to pass through our Solar System.

Astronomy Picture of the Day: Saturn's Iapetus: Painted Moon

What has happened to Saturn's moon Iapetus? Vast sections of this strange world are dark as coal, while others are as bright as ice.

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