Yesterday I announced my intent to spend future Tuesdays featuring the best of my 14 years of posting this blog.  As Wednesday is my sci-tech day, I will provide a similar alert indicating what science topics I will focus on over next few days and weeks: What is a star?  Part 2 will feature dwarf stars, which are relatively small, and rest somewhere between stars and large planets, from a fascinating  Scientific American  article. Chemistry's quantum future.  Many products developed by industry were pure accidents, like teflon.  Chemistry is nearing a phase of being able to bypass this thing called serendipity. A possible solution to global warming:  the answer might be within our mantle, as seen in a remote desert of Oman. Virus scoreboard:  what can we expect in the future. A new understanding of Alzheimer's:  is microglia the real target? While only 1% of us stutter, as I once did, we getting closer to better understanding and curing this problem. Are hypersonic weapons over

      From  Worldometer  (new  COVID-19 deaths yesterday):          DAY    USA    WORLD     Brazil      India      South Africa June     9    1093     4732         1185       246       82 July    22     1205     7128         1293      1120     572 Aug    12     1504     6556        1242        835     130 Sept     9     1208      6222       1136       1168       82 Oct     21     1225      6849         571        703       85 Nov    25      2304    12025        620        518      118 Dec     30      3880    14748       1224       299      465 Jan      14       4142    15512         1151        189       712                  Feb      3       4005    14265       1209       107      398           25       2414    10578        1582        119      144 Mar     2        1989      9490       1726       110      194           31       1115      12301        3950       458       58 April   6         906     11787         4211        631       37 May    4         853     13667         3025