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Sky Matters: 2020 saw the launch of 111 rockets, some carrying up to 60 satellites
The unmanned Chinese Chang’e spacecraft brought back the largest haul of moon rock since the Apollo era.
In 2020 the Japanese Hayabusa 2 spacecraft returned to Earth after a rendez-vous with a near-Earth asteroid called Ryugu.
Mon, 28 Dec, 2020 - 08:00
We have passed the shortest day of the year. Slowly but surely the hours of daylight increase. More energy from the sun falls on the northern hemisphere and gradually the warming begins.
It’s not immediate, as we all know, partly because our atmosphere is slow to react. This time lag may have been a cause for concern for our ancestors who likely prayed to their deities in the hope of the fruitful return of the longer days. For us, it’s different. We know the lengthening of the days are inevitable because we understand the principal force of nature responsible gravity.
Astro Bob: Scientists love lumps of coal in their Christmas stockings
The Japanese Hayabusa-2 asteroid mission returns a bounty of material from a potentially hazardous asteroid, while China s scientists begin examination of a fresh batch of moon rocks.
Written By:
Bob King for the Duluth News Tribune | 1:31 pm, Dec. 25, 2020 ×
On Dec. 21, sample catcher chambers in the Hayabusa2 landing capsule were opened and moved to the collection containers in the photo. Each black fragment is a piece of Ryugu, a potentially hazardous asteroid the orbits the sun near the Earth. The arrow points to a possible piece of aluminum from the sample collector itself that somehow wound up inside the container. 5mm equals about one-fifth of an inch. The largest fragments are about 0.4 inch long. (Japan Aerospace Exploration Agency JAXA)