The Moon is seen passing in front of the Sun during a solar eclipse from Ross Lake, Northern Cascades National Park, Washington on Aug. 21, 2017. via NASA https://ift.tt/oqBuWUv
Day: March 9, 2023
How to Make Things Stick: The Science of Memory
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Nature quote of the day
“This continent, an open palm spread frank before the sky.” – James Agee
Art Quote of the Day
“Creativity takes courage.” – Henri Matisse
DART vs Dimorphos
On the first planetary defense test mission from planet Earth, the DART spacecraft captured this close-up on 26 September 2022, three seconds before slamming into the surface of asteroid moonlet Dimorphos. The spacecraft’s outline with two long solar panels is traced at its projected point of impact between two boulders. The larger boulder is about 6.5 meters across. While the DART (Double Asteroid Redirection Test) spacecraft had a mass of some 570 kilograms, the estimated mass of Dimorphos, the smaller member of a near-Earth binary asteroid system, was about 5 billion kilograms. The direct kinetic impact of the spacecraft measurably altered the speed of Dimorphos by a fraction of a percent, reducing its 12 hour orbital period around its larger companion asteroid 65803 Didymos by about 33 minutes. Beyond successfully demonstrating a technique to change an asteroid’s orbit that can prevent future asteroid strikes on planet Earth, the planetary-scale impact experiment has given the 150-meter-sized Dimorphos a comet-like tail of material. via NASA https://ift.tt/8xMkovi
Showers today!
Showers today! With a high of 12C and a low of 12C.
80 Humidity.
8 C currently.
26 Km/h Wind from
Southwest.
80 Humidity.
8 C currently.
26 Km/h Wind from
Southwest.