NASA has successfully test flown its helicopter on Mars.
See https://www.bbc.co.uk/news/science-environment-56799755 .
Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
NASA has successfully test flown its helicopter on Mars.
See https://www.bbc.co.uk/news/science-environment-56799755 .
Date/Month 95% 50% 5%
2012 11 96.1 68.7 41.4 2012 12 97.2 69.7 42.1 2013 1 98.2 70.5 42.8 2013 2 99.1 71.2 43.4 2013 3 99.8 71.8 43.9 2013 4 100.4 72.4 44.3 2013 5 100.9 72.8 44.6 2013 6 101.3 73.1 44.9 2013 7 101.6 73.4 45.1 2013 8 101.8 73.5 45.2 2013 9 101.8 73.5 45.2 2013 10 101.8 73.5 45.2 2013 11 101.6 73.3 45.1 2013 12 101.3 73.1 44.9 2014 1 100.9 72.8 44.6 2014 2 100.4 72.4 44.3
The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 75 in the Fall of 2013. The smoothed sunspot number (for 2012/02) is already nearly 67 due to the strong peak in late 2011 so the official maximum will be at least this high. We are currently well over three years into Cycle 24. The current predicted and observed size makes this the smallest sunspot cycle since Cycle 14 which had a maximum of 64.2 in February of 1906.The latest prediction graph from http://solarscience.msfc.nasa.gov/images/ssn_predict_l.gif
"The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 76 in the Fall of 2013. The smoothed sunspot number (for 2012/02) is already nearly 67 due to the strong peak in late 2011 so the official maximum will be at least this high. We are currently well over three years into Cycle 24. The current predicted and observed size makes this the smallest sunspot cycle since Cycle 14 which had a maximum of 64.2 in February of 1906."Looks like they are expecting a double peak cycle with a slightly larger peak about a year from now. We'll see. The peak is likely to be very low compared with mega-peaks seen in the last half century.
"Every hundred years or so, a solar storm comes along so potent it fills the skies of Earth with blood-red auroras, makes compass needles point in the wrong direction, and sends electric currents coursing through the planet's topsoil. The most famous such storm, the Carrington Event of 1859, actually shocked telegraph operators and set some of their offices on fire. A 2008 report by the National Academy of Sciences warns that if such a storm occurred today, we could experience widespread power blackouts with permanent damage to many key transformers."There are plans afoot to create an early warning system to protect the US grid system in such events.
As we were in London to see "Guys and Dolls" at the Tower Theatre with our village theatre group, I decided to take this photo of ...