Mind Matters Natural and Artificial Intelligence News and Analysis

TagSpeed of light

planets-and-exoplanets-of-unexplored-galaxies-sci-fi-new-worlds-to-discover-colonization-and-exploration-of-nebulae-and-galaxies-stockpack-adobe-stock
Planets and exoplanets of unexplored galaxies. Sci-Fi. New worlds to discover. Colonization and exploration of nebulae and galaxies

News From the Search for Extraterrestrial Life 9

NASA is readying a set of eight instruments for the Ocean Worlds Life Surveyor to search for life on Jupiter’s moon Europa and Saturn’s moon Enceladus

In our universe The universe (as much of we know of it) has now been mapped: With 56,000 galaxies, there wold be, in principle, many places to look for life: “Galaxies, such as the Milky Way, are the building blocks of the universe, each comprised of up to several hundred billion stars.” – Phys.org A big barrier to exploration is, of course, the speed of light; most galaxies are many light years away and nothing moves faster than light. Incidentally, a group of astronomers recently claimed to have detected matter exceeding the speed of light. We asked theoretical physicist Rob Sheldon about that and he replied, “No, it isn’t going faster than the speed of light. Most superluminal objects are Read More ›

time-and-space-travel-concept-abstract-background-stockpack-adobe-stock
Time and space travel concept abstract background

What Would Happen If We Traveled at 2x the Speed of Light?

We can’t reach the speed of light just by speeding things up, let alone exceed it. But are there other ways?

Recently, a 13-year-old in Mumbai asked philosopher of mathematics Sam Baron what would happen if someone were to move — hypothetically — at twice the speed of light. Baron replied, As far as we know, it’s not possible for a person to move at twice the speed of light. In fact, it’s not possible for any object with the kind of mass you or I have to move faster than the speed of light. Sam Baron, “Curious Kids: what would happen if someone moved at twice the speed of light?” at The Conversation (May 24, 2022) He explains why not as follows, To accelerate an object with mass, we have to add energy. The faster we want the object to Read More ›

the-andromeda-galaxy-stockpack-adobe-stock
The Andromeda Galaxy

Veteran Science Writer Says We Won’t Meet Intelligent Aliens

Not because they are not there but because vast interstellar distances make them unreachable

“It does not matter if intelligent life exists elsewhere. We will never find each other,” says veteran science writer Alex Berezow. He’s not saying they are not out there. He is throwing cold water on our chances of contacting them. Some things, he admits, have changed: Thanks to advances in astrophysics, we now know that there are billions of exoplanets in the Milky Way alone, leading most of the scientific community to conclude that life probably does exist elsewhere in the universe. Those who do not believe so are now considered the kooks. And while alien abductions are still not in the mainstream, UFOs are — so much so that the U.S. intelligence community just issued a report on them. Alex Berezow, “We are Read More ›