Activity Stream

Yes, I misread Jens's post in two different ways, and kicked off about care home deaths, rather than nursing home and hospital cases. The figure for...

"VIPER lunar rover mission cost increases" https://spacenews.com/viper-lunar-rover-mission-cost-increases/

"Biden’s first strategic guidance sets broad national security priorities " ...

Actually for horizontal travel the use of engine plus wing lift makes sense if you want a soft landing. V2 style baliistics make for hard landings!...

Indeed, missiles use small fins to achieve high g turning, but for Earth to Earth flights, the issue of fuel saving ( and safety back up procedures )...

Book chapter reviewing new evidence on lunar origin theories, and what Earth was like before the Moon appeared. Origin of the Moon. Robin M....

Upon further thinking, they are also planning to use Starship for point-to-point flight on earth. But it was my understanding that this would be...

Mining asteroids--a new overview on the process. Furthering Asteroid Resource Utilization in the Next Decade through Technology Leadership ...

A SpaceX Falcon 9 launched a new set of Starlink satellites and landed the booster March 4, two and a half weeks after the landing failed on the...

Nah, it was obviously just the launch played back in reverse.

"ISS Leaks May Be Caused by Metal Fatigue, Micrometeorite Impact, Source Says" If it is confirmed it is metal fatigue, than the life span of at...

"Green Run Update: Engineers Repair Valve for Mid-March Hot Fire Test" ...

The 1st launch in March as well as the 17th launch this year is by USA. It was SpaceX's 6th launch this year. ...

"China releases high-resolution Mars images from Tianwen-1 probe" http://www.xinhuanet.com/english/2021-03/04/c_139782489.htm

"China's 1st reusable rocket on way, says expert" http://www.chinadaily.com.cn/a/202103/04/WS604019cca31024ad0baac8ea.html

Thanks for that, it was just that lift flying would be greater than the drag of falling. Even with a poor glide angle it could for example spiral...

It is mostly vertical falling in these tests; lift generated by the flaps is used mainly for attitude stabilisation. Think of it as a skydiver using...

Sorry if this has been covered during the many pages of this thread: when it is in the bellyflopped descent stage, is it just falling or does it...

Some of the v1.0 legs didn't latch, so it came down in the skirt. The impact knocked and something came loose, so the fire and later boomski. ...

https://youtu.be/hvTnTsZOZGs It's amazing that mega dunes move across Mars. Just a few decades ago, there was no evidence that the sands on Mars...

To imagine an analog of the electric discharge that can occur in the conditions of Martian storms, rub a balloon on dry hair, and then "glue" it to...

People who don't listen or think. During the last auction in another town someone from my town bought a large rug a 8X4 woolen carpet. The people...

We have one and I mostly use it to make chicken stock. Doing so saves a lot of time but I never use it as a slow cooker (we have one of those, too).