It’s coming our way, but 30 million years away means we will have a while to wait.
The binary system dubbed, LMC P3, contains a massive star and a crushed stellar core that interact to produce a cyclic flood of gamma rays.
We know for sure where some of the X-rays we can measure come from thanks to a sounding rocket. Now there are more questions.
What a find!
About 4,500 years ago a huge meteor hit Argentina. It was found a few days ago on 10 September by explorers from the Astronomy Association of the Chaco (Asociación de Astronomía del Chaco). Chaco is a province of Argentina and the meteor fall area is located in the southwestern part of the province in the town of Gancedo.
When I saw this on the news I had to go to Impact Earth and see what would happen if this hit near me. Try it.
The Super Guppy, an aptly named NASA cargo plane might look unwieldy but don’t let looks fool you; this plane can deliver large items.
The image here for example shows the cargo bay of the plane and a new heat shield being unloaded at Kennedy Space Center (Photo credit: NASA/Dimitri Gerondidakis).
The heat shield will protect the new Orion spacecraft from the intense heat of re-entry. The heat-shield, built by Lockheed Martin in Colorado will withstand temperatures of 2,760 C / 5,000 F. The 5 meter / 16.5 ft diameter heat-shield plus crating fits easily inside the Guppy.
Here’s a video of the Super Guppy in action.
Here’s a look around Curiosity, or the Mars Science Laboratory on Mars. For two minutes you can look around the scene by using the arrows at the top left of the video or just “clicking and dragging” your way around. Running out of time is no problem just replay the video (or whatever you would call this).
The scene is from a location called Murray Buttes and most of the features are labeled. The rover is not visible in this MastCam product.
For scale The dark, flat-topped mesa seen to the left of the rover’s arm is about 50 feet (about 15 meters) high and, near the top, about 200 feet (about 60 meters) wide according to NASA.
I was looking at the panorama and thought how completely quiet it must be up there and what it would sound like to try and get an echo off the buttes. The echo time lag of course depends on the speed of sound on Mars. Looking around on the web quickly reveals the speed of sound on Mars is about 244.4 m/s or 801.3 ft/s compared to 340 m/sec or 1115 ft/sec on Earth. So the echo would take nearly 25 percent longer to return on Mars than on Earth.
An especially good episode this week. Very interesting bit on the atmosphere of the Jupiter moon Io, the sulfur dioxide atmosphere freezes onto the moons surface during the period where Jupiter shades the moon and then is restored as the shading goes away.