NONE! http://www.theweathernetwork.com/news/articles/whats-up-in-space-the-best-nasa-has-from-pluto-so-far/54248/

INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE...

Nothing but nothing matches an RTG power source. Not solar, not chemical. And nothing ever WILL match it.

http://www.nasa.gov/sites/default/files/thumbnails/image/nh-pluto-charon-earth-size.jpg

http://www.theweathernetwork.com/news/articles/your-five-point-guide-to-tuesdays-amazing-pluto-flyby/54151/

Summer is the time to explore the Milky Way, with its mired of stars and deep sky objects. Throughout the Milky Way there is a background of elemental hydrogen...

Vath doesn't like links but he really needs to look at this one. http://www.sciencedaily.com/releases/2015/07/150709092955.htm#.VZ_eTA2ZdAM.mailto Keep your...

But...it is a 2-element six-inch and I don't think they are specifying what glass is being used so "apo" might not be as "apo" as it should be. We'll see.

The FC-100D, is a new scope that uses a sub-diameter fluorite element inside the tube like TeleVue, but an "eco-glass" objective element up front. How nice. ...

People have no idea how the hobby has changed. In the early 1900's, any decent telescope ownership meant you were rich, unless you made it yourself.. In the...

Just came across this news item: http://insideclimatenews.org/news/29062015/smithsonian-revamps-disclosure-rules-after-willie-soon-controversy John Savard

Why we need to keep adding leap seconds http://phys.org/news/2015-07-adding-seconds.html The length of the solar day – or the time it actually takes the...

Due to wildfires in western Canada my sky (and the sky over much of the U.S..) has been quite smoky. Combine a smoky sky with a full moon and many would write...

http://apod.nasa.gov/apod/image/1507/VenusandJupiterareClose_WangLetian.jpg

After four cycles of 365 days and rotations, an additional 86,400 seconds and one rotation is inserted to make up the natural difference in orbital distance...

Saw them today in an indoor setting. Decent eyepieces, reminded me a bit of Radians. But according to Nagler, Radians were discontinued due to lack of glass...

RSA Animate - Drive: The surprising truth about what motivates us https://www.youtube.com/watch?v=u6XAPnuFjJc -- sci.physics is an unmoderated newsgroup...

Last night was 2nd light for a new telescope. So naturally I had to check out performance, etc. Besides checking out a few DSOs: NGC3077 (stumbled across...

Maybe they should be making contact explosives instead? http://money.cnn.com/2015/06/28/technology/spacex-rocket/index.html

Stars of a Summer's Triangle http://apod.nasa.gov/apod/ap150627.html Explanation: Rising at the start of a northern summer's night, these three bright...