#life-beyond-earth

#life-beyond-earth

The new work was less notable for showing that we had found these bases in Ryugu than for solving a previous mystery: earlier studies had failed to detect them there, despite their presence in many other asteroid samples.

Pilot Victor Glover flew the vehicle through a variety of maneuvers primarily using Orion's 24 reaction control thrusters, demonstrating the vehicle's handling capabilities.

Only 24 people have seen the far side of the Moon with their own eyes in the entire history of humanity. All of them were men, Americans, and white: the crew members of the nine Apollo missions that traveled to the Moon between 1968 and 1972.

My prediction is based on only two assumptions. First, our visitors from space can die; they are not immortal. Second, they care about each other. When one of their own dies, they mourn them, just as humans do. These assumptions, I think, will have led these aliens to invent gods and a belief in the afterlife. Belief in the afterlife, where we defeat death and are reunited with loved ones who have died, is the basis of all past and current religions.

In the silent vacuum of space, five autonomous robots churn through the lunar surface, digging up a loose layer of rock and dust and leaving rows of uniform tracks in their wake. Stopping only to recharge at a central solar power station, the car-sized machines process the lunar dirt internally to extract a type of helium so rare on Earth that a palm-sized container is estimated to be worth millions.

Despite decades of searching, SETI scientists have found no evidence of ET signals from space. The lack of success could be due to the staggering amount of data that must be collected and analyzed.

This system is truly extraordinary. We are seeing the radio equivalent of a laser halfway across the universe. This galaxy acts as a lens, the way a water droplet on a window pane would, because its mass curves the local space-time. So we have a radio laser passing through a cosmic telescope before being detected by the powerful MeerKAT radio telescope.

If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there, potentially helping explain some of the radio silence we've seen in technosignature searches. This statement from Dr. Vishal Gajjar highlights how stellar environmental factors may cause detectable signals to become invisible to current SETI instruments.

We found that life is more likely to survive an asteroid impact, so it's definitely still a real possibility that life on Earth could have come from Mars. Maybe we're Martians! The idea that life could have spread through the solar system or even the universe on rocks is known as the lithopanspermia hypothesis.

For example, reader David Erickson had this on his mind: If there were aliens 66 million light-years from Earth, how big a telescope would they need to see dinosaurs? Ha! I love this question. I've thought of it myself but never worked out the mathexcept to think, Probably pretty big, which turns out to dramatically underestimate the actual answer.

It's a plant! It's a fungus! It's... an entirely new type of lifeform hitherto unknown to science? That appears to be the case for a puzzling, spire-shaped organism that lived over 400 million years ago, according to a new study published in the journal Science Advances. After analyzing its internal structures, the authors argue that the mystifying ancient beings known as prototaxites don't belong to any of the existing biological kingdoms.

A global research team has analyzed the prospects for biomineralization on Mars, a process in which bacteria, fungi, and microalgae can create minerals as part of their metabolism, offering a byproduct that could be useful to prospective Martian explorers by providing the raw materials needed to produce aggregates such as concrete. With an extremely thin and mostly carbon dioxide atmosphere, air pressure less than 1 percent of Earth's,

I think the first thing to remember is: We are right at the beginning of this adventure. There's so much excitement that every little signal - every "wiggle" in a spectrum - gets people saying, "Oh! That might be life!" And then, on the other side, other people respond with, "I don't see enough wiggles, so there's probably not even an atmosphere. Dead planet. Move on." Both reactions are too fast.