Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

“We’re going all the way to Mars, I think… best case 10 years, worst case 15 to 20 years.”

10:10 am

Elon Musk: “We’ll probably put a first man in space in about three years. We’re going all the way to Mars, I think… best case 10 years, worst case 15 to 20 years.”

I believe him when he says he’ll launch his first manned mission in three years. However, I think he seriously underestimates the challenges of a mission to Mars, based on our present engineering abilities to build interplanetary spaceships.

3 comments

Earth Day predictions from 1970

9:54 pm

The predictions of disaster from the first Earth Day, 1970. I especially like this one:

“Demographers agree almost unanimously on the following grim timetable: by 1975 widespread famines will begin in India; these will spread by 1990 to include all of India, Pakistan, China and the Near East, Africa. By the year 2000, or conceivably sooner, South and Central America will exist under famine conditions. . . . By the year 2000, thirty years from now, the entire world, with the exception of Western Europe, North America, and Australia, will be in famine.” Peter Gunter, professor, North Texas State University [emphasis mine]

A consensus was reached and the science was settled!

Remember this the next time some blowhard global-warming pundit tries to claim “the science is settled” today.

2 comments

Scientists find previously unknown deposits of CO2 on Mars

5:20 pm

Scientists find a gigantic and previously unknown deposit of CO2 at Mars’ south pole.

“We already knew there is a small perennial cap of carbon-dioxide ice on top of the water ice there, but this buried deposit has about 30 times more dry ice than previously estimated,” said Roger Phillips of Southwest Research Institute in Boulder, Colo. Phillips is deputy team leader for the Mars Reconnaissance Orbiter’s Shallow Radar instrument and lead author of the report. . . . “When you include this buried deposit, Martian carbon dioxide right now is roughly half frozen and half in the atmosphere, but at other times it can be nearly all frozen or nearly all in the atmosphere,” Phillips said.

What this discovery means is that, depending on Mars’ orbital circumstances, its atmosphere can sometimes be dense enough for liquid water to flow on its surface.

4 comments

“Space beer,” one giant leap for mankind

9:35 am

The science of space beer.

“For example, many metals burn more easily in reduced gravity, liquids behave differently, both of which have important implications for safety and the way machinery and equipment operate in spacecraft and space stations. The beer experiments assisted in determining the correct level of carbonation, so that it can in the future be appropriately enjoyed by humans in reduced gravity,”

Leave a comment
1 … 816 817 818 819 820 … 885