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Monthly Archives: February 2012
Auroras way up north plus the moon visits a famous star cluster
Bright auroras have dressed up the Arctic sky the past two nights after the sun’s wind of charged particles – electrons and protons – pried an opening in Earth’s magnetic field and spiraled down into the upper atmosphere. There’s still … Continue reading
Milky Way from a hilltop and the starry gazelle leaps again
Yesterday afternoon I stood atop a hill with snow coming down and the trees all fuzzy in the distance. Then it hit me like a snowball on the back of the neck – the forest helps us understand the appearance … Continue reading
Tagged Astro Bob, gazelles, Milky Way
4 Comments
Put your stamp of approval on a new Pluto stamp
“It looks like the moon cut in half,” said the little boy after he looked at Venus through the telescope last night. And so it did. We had some interference from high clouds, but it was clear enough to see … Continue reading
Tagged alignment, Astro Bob, dwarf planet, moon, Pluto, Tombaugh
8 Comments
Moon and planets align this weekend – don’t miss it
If it’s clear in the west tonight, your eyes will twinkle with extra added sparkle. The crescent moon slides just a few degrees to the right of Venus, while Jupiter shines above and Mercury below. You’ll want to be out … Continue reading
February fireballs really shake things up
Security video captured the Canadian fireball over Saskatchewan, Alberta, Canada Meteorites seem to be dropping everywhere. First China and now today comes word of fresh cosmic booty on the ground north of the town of Rockhaven (a wonderfully appropriate name) … Continue reading
Faster than light neutrino result flawed, loose cable to blame
Remember last September’s Italian experiment that supposedly detected faster-than-light neutrinos? Neutrinos, which come in several varieties, are neutral subatomic particles that have a very minute mass and rarely interact with matter. When hydrogen is fused into helium in the sun’s … Continue reading
Tagged Astro Bob, CERN, neutrino, Super Kamiokande
4 Comments
Mercury makes its move into the evening sky
Move over Jupiter. Move over Venus. It may be the smallest planet, but Mercury is on its way up into the evening sky. Beginning tonight – and with the help of a very young crescent moon – observers with clear … Continue reading
Tagged Astro Bob, Mercury, Messenger, moon
8 Comments
Rocket launches into aurora plus a new meteorite falls in China
As some of us stood amazed at the haphazard dance of northern lights last Saturday night, a team of scientists and graduate students from New Hampshire’s Space Science Center watched with equal amazement night as a rocket laden with sensors … Continue reading
Tagged Alfven waves, Astro Bob, aurora, China, meteorite
5 Comments
The Great Twilight Planet Show rolls into town
Have you been watching the light show in the western sky these past few weeks? Jupiter and Venus has been ever-so-slowly drawing closer together during evening twilight. Like two lovers in a lengthy courtship, these two planets were clearly meant … Continue reading
Tagged Astro Bob, Jupiter, Venus
7 Comments
Aurora update plus we visit with the sun’s sisters in Cancer
Wow – two decent auroral displays in a week! We haven’t had that around here for a long time. While last night’s lights were in the forecast, they weren’t described as anything more than “isolated active periods”. I think it … Continue reading
Tagged Astro Bob, aurora, Beehive cluster, M67, star cluster
2 Comments