An online quiz is like an exam to which students can bring their phones. Continue reading “A Quiz for Christmas Eve”
Blog
Balance
Earth is about to arrive at the December solstice, the fourth of the year’s four cardinal poi
Points, more
“Global warming should be called global heating, says key scientist.” Continue reading “Points, more”
Midwinter Minima
Comments: Cato, Stereo
Prose is linear, but the blog-and-comment system, Continue reading “Comments: Cato, Stereo”
Zodiac Wavy Chart for 2019
And “Astronomical Calendar Any-Year.” They’re out. Take a look – universalworkshop.com/ZOD and universalworkshop.com/ACAY
Comet Wirtanen
Periodic comet 46P Wirtanen is rapidly rising into our midnight skies, and rising toward naked-eye visibility.
A horseshoe of Earths
Venus is at its brightest in the morning sky. It’s been appearing in Continue reading “A horseshoe of Earths”
Past Earths revisited, and the software that finds them
Here is the sky this Wednesday evening –
Continue reading “Past Earths revisited, and the software that finds them”
A trail of Earths, re-sent
I apologize for sending this post a second time. I forgot one step: putting in the “Read more of this post” interruption. That meant that the whole thing was in the email, and you couldn’t read it like a web page, or enlarge the pictures in the way I suggested at the end.