Activity Stream

May be too much hazard associated with that; unexpended propellants and such.

This thread is closed due to non-participation by the OP and failure to provide timely answers in spite of moderator instructions. This topic may...

"China to develop two super-heavy launchers for moon missions" https://spacenews.com/china-to-develop-two-super-heavy-launchers-for-moon-missions/

It may be a tangent, but frailty reminds me of bones for which I devised a ex vitro test in my final year. I was testing the Tibia. We were supplied...

Never?

The 5th test of the high-thrust oxyhydrogen engine designed for the Long March-5 was carried out for 520 seconds. ...

I think it's largely a safety/handling issue. TEA-TEB is toxic, its smoke is hazardous, and it ignites spontaneously on contact with air, water, or...

"World's largest planetarium to begin trial operations in Shanghai" http://www.chinadaily.com.cn/a/202103/02/WS603dfc38a31024ad0baac39a.html

SpaceX’s Starship SN10 will attempt to launch – and nail the landing – as early as Wednesday, after passing all the pre-launch requirements. Weather...

If I remember correctly not all the engines have the ability to restart. They start the Merlin engines with a shot of TEA-TEB. At launch all of the...

Chinese commercial launch company iSpace said Monday that an errant piece of foam insulation caused the loss of its Hyperbola-1 launch vehicle in...

We should also wonder why only 20% of deaths in Japan occurred outside care-homes, since that's a lot lower proportion than in Europe, where...

As launch activity grows on the Eastern Range in Florida, companies and government agencies are looking at ways to add capacity, largely through...

Starship lunar mission by 2023: SpaceX will fly its deep-space rocket Starship in orbit "many, many times before 2023" and will take 12 people around...

"China to launch new satellite for CO2 monitoring" http://www.xinhuanet.com/english/2021-03/02/c_139778163.htm

New design for Russian super-heavy methane-powered launch vehicle completed. ...

Maybe also add some code to use alternative engines for descend when there is a relevant engine out on ascent?

It is presumably a subject for research as to why this virus seems to afflict proportionally with age, many viruses do not. Maybe the generalised...

COVID 19 vaccines are currently selling for $200 a dose on the dark web. Trucks shipping vaccines are now equipped with anti-carjacking measures.

In that summary from Borman, the data set in question is from scintillation (light) emitted by particles hitting the detectors which are shielded by...

Of course, I don’t claim expertise here, I just remember reading an article where a doctor made a distinction between gross compromise of large parts...

Here is to hoping they take a chance and examine the skycrane impact zone this time. They may see a rock newly split in two.

I do wonder if other uses for the shuttlecock design-it was all the rage along with the Bickler Pantograph.

Just to be clear, by "compromised" I really just meant "less effective." Maybe it is too strong a term. And in that sense, I completely understand...

To some, that might smell too much like the ABMA troop rocket concept of nearly a half-century ago. Redstones and Jupiters killed in favor of the...

I believe it is primarily due to a large number of older people in those crowded settings which have a less effective immune response even if healthy...

Nope they usually freeze in one of two point and usually have to ran a hairdryer over it. Tonight the big issue is when to go to sleep because I have...

MOND or MOND-like? We know that GR is the more accurate theory compared to Newton. MOND suggests that at very low accelerations the inverse square...