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ESO is celebrating! Getting closer! Next stop, Paranal The first 18 main mirror segments of ESO’s Extremely Large Telescope (ELT) have now safely travelled from Europe to South America, covering more than 10,000 km. Unloading the first shipment of the ELT main mirror segments ELT mirror...

Eclipses have nothing to do with northern or southern lights, it's all about coronal ejections.

From APOD... What's causing those unusual sky arcs? Ice crystals. While crossing a field of fresh snow near Füssen, Bavaria, Germany, earlier this month, the photographer noticed that he had entered an ice fog. For suspended water to freeze into an ice fog requires quite cold temperatures, and...

The high altitude and dry air of the Chajnantor plateau give the Atacama Large Millimeter/submillimeter Array (ALMA), operated by ESO and its international partners, an optimal window to study the cold dark universe. In this striking picture, the rolling, rusty and barren landscape of the...

ELT has passed the 50% completion point! Progress :) ELT atop Cerro Armazones in Chile The dome will be around 80 meters high and weigh 6100 metric tons when it is finished. ELT's tertiary mirror, M3, is four meters in diameter and weighs in at a whopping three metric tons. Here, the M3...

They can't land it, but they said they will do as much science as possible for the remainder of the mission.

Happy New Year! Can a rocket make the Moon ripple? No, but it can make a background moon appear wavy. The rocket, in this case, was a SpaceX Falcon Heavy that blasted off from NASA's Kennedy Space Center last week. In the featured launch picture, the rocket's exhaust plume glows beyond its...

I was away and didn't see the launch. However, it's interesting to me that the X-37 has been launched on Falcon 9's in the past iirc...so why now on Falcon Heavy? Wondering if the added more secret stuff on it.

CVN-71 Theodore Roosevelt...I remember way back in the day, I boarded the USS Coronado from that same dock for a week around San Clemente Island for helicopter flight ops. I was part of the helicopter squadron assigned to that short detachment as part of Helicopter Combat Support Squadron, HC-1...

Fantastic information as usual @AJS

What does the largest moon in the Solar System look like? Jupiter's moon Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered terrain laced with grooves and ridges. The cause of the grooved terrain...

As I said yesterday, the weather is getting progressively worse as the week goes on. Windy conditions until next Tuesday or Wednesday :(

Does that doc have a weblink? I don't do Facebook.

It's been pretty windy here the past few days...too windy too launch I think...sucks cuz last night was super clear, would've been epic. Weather is only going to get worse till the end of the weekend :(

Bummer, both scrubbed tonight, but possible Falcon Heavy and Falcon 9 launch Tuesday.

I'm not but a co-worker is and she promised to take pics fpr me.

Wow, I am honored that my pic is still the last pic posted here for over 24 hours, thank you, I am humbled....another angle...I just took this pic 2 minutes ago, lol.

Haven't posted in a while...badder is from AYR, so is the flower in the jar on the far right by the oil diffuser...they've consistently had the best deals...my nightly setup.

What I'm doing right this second...

Euclid Space Telescope Euclid is named after the Greek mathematician Euclid of Alexandria, who lived around 300 BC and founded the subject of geometry. As the density of matter and energy is linked to the geometry of the universe, the mission was named in his honor. Mission objectives Euclid...