Solar Cycle 25, An energetic awakening of the SUN in the current solar cycle |
Solar Cycle 25, An energetic awakening of the SUN in the current solar cycle |
Feb 17 2022, 09:05 PM
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Member Group: Members Posts: 701 Joined: 1-April 08 From: Minnesota ! Member No.: 4081 |
As many UMSF members have likely noticed the current Solar Cycle (25) is off with a bang! https://en.wikipedia.org/wiki/Solar_cycle_2...progression.png. SOHO observations https://soho.nascom.nasa.gov/spaceweather/ coupled with daily comments in Space Weather https://spaceweather.com/ provide an excellent way to follow this activity.
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May 14 2023, 01:08 AM
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Member Group: Members Posts: 701 Joined: 1-April 08 From: Minnesota ! Member No.: 4081 |
An interesting paper and experiment, https://www.mdpi.com/2075-1729/13/5/1103 was discussed in today's SpaceWeatherNews page. https://spaceweather.com/ . The experiment compares the production of amino acids in a simulated paleo Earth atmosphere by irradiation by a beam of high energy protons compared to spark discharges produced using a Tesla coil, a proxy for lightning, (the latter a variation on the famous Miller-Urey experiment of 1952). High energy protons produced by superflares (SEPs) were common in the young Sun's history, hence the proxy of a proton beam. Results showed the production of amino acids to be orders of magnitude greater using proton beam irradiation compared to spark discharges. The full paper is available in the first link above.
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