Things we learned from Stephen Hawking

Posted by Dave Switzer under From the web

Stephen Hawking’s best known book is A Brief History of Time. But he hasn’t been slacking off since then. His recent book The Grand Design, which he wrote with Leonard Mlodinow, has some interesting things in it as well. Clara Moskowitz from LiveScience has picked 8 shocking things to draw our attention to. If you […]

10 recent scientifically solved mysteries

Posted by Dave Switzer under From the web

What made the ancient theatre of Epidaurus so acoustically great, who made the crystal skulls, and is there a face on Mars — all answered. From Listverse: 10 Recent Scientifically Solved Mysteries There are lots more lists on this web site if you’re a fan of lists. As a follow-up to yesterday’s post, here are […]

10 things to know about the Moon

Posted by Dave Switzer under From the web

Think you know everything about the Moon? See if you’re right. Feel like you don’t know enough about the Moon? Look right here. From LiveScience: Top 10 Amazing Moon Facts The most amazing thing I ever saw in the sky was a ring around the Moon. Here’s an explanation of the cause (you can also […]

Oldest cave art discovered in Spain

Posted by Dave Switzer under From the web

A cave in Spain contains simple paintings made over 40 000 years ago. Since Neanderthals lived in the area at the time, it’s possible the paintings were done by them — although Modern humans were also in the area. Neanderthals and Modern humans (homo sapiens) have long been thought of as separate species, but some […]

Genome sequence of bonobo completed

Posted by Dave Switzer under From the web

All the great apes have now had their genome sequences completed — which mean scientists know all about their DNA. Bonobos and chimpanzees are members of the same genus — the last common ancestor of the two species was probably around a million years ago. It’s possible that bonobos and chimpanzees were divided into two […]

How long ago did our ancestors use fire?

Posted by Dave Switzer under From the web

One million years ago. New research says that the earliest firm evidence is from a cave in South Africa where fires burned more than once in the same spot. Our ancestors used fire a million years ago, study says At that point they weren’t yet using fire on a regular basis — that came around […]

Have aliens visited Earth?

Posted by Dave Switzer under From the web, My thoughts

I would be happy if aliens visited Earth, but I don’t believe they have as of yet. Although there are many reports of UFOs and alien abductions, somehow I think if aliens were really here we would know it. As the FAQ on the SETI Institute web site puts it: “if there were interesting, verifiable […]

Over 60 billion habitable worlds in our galaxy

Posted by Dave Switzer under From the web, My thoughts

That’s a new estimate from astronomers, who have calculated that 40% of red dwarf stars (the most common type of star in our galaxy) “have a so-called ‘super-Earth’ planet orbiting in a habitable zone that would allow water to flow on the surface.” More details here… Billions of habitable worlds in Milky Way And that’s […]

Why did humans start walking upright?

Posted by Dave Switzer under From the web

Why our ancestors started walking upright has been one of the big mysteries in human evolution. There have been various theories but we didn’t know for sure. Now researchers have studied chimpanzees — who are relatively similar to our ancestors from 6 million years ago — and discovered that they will walk upright more when […]

Space is a dangerous place

Posted by Dave Switzer under From the web

Something unusual happened on the International Space Station today. The astronauts all got into rockets in case they had to leave the station and return to Earth. Why? Because a piece of space junk was heading their way and they weren’t sure if it was going to hit the station. What does space junk consist […]