Lifeboat Foundation

Steamy World Could Be a Sample of Water-Rich Planets Throughout Our Galaxy The search for life in space goes hand-in-hand with the search for water on planets around other stars. Water is one of the most common molecules in the universe, and all life on Earth requires it. Water functions as a solvent by dissolving substances and enabling key chemical reactions in animal, plant, and microbial cells. It is much better at this than other liquids.

We listen, but we don’t send. Why do we expect aliens to transmit if we don’t? Many have voiced concerns about any programs designed to broadcast our presence — afterall, they may not be friendly. Although it may be a popular idea in science fiction, what do scientists say about this scenario? Today we explore the arguments for and against messaging, and what it might imply about the type of civilization that chooses to engage in messaging…

Written and presented by Prof David Kipping. Special thanks to Erik Wernquist for giving us permission to use a clip from his beautiful \.

NASA scans of Mars’ Jezero Crater confirm lake sediment layers that could contain evidence of ancient microbial life on the red planet.

New research shows that atmospheric pressure fluctuations that pull gases up from underground could be responsible for releasing subsurface methane into Mars’s atmosphere; knowing when and where to look for methane can help the Curiosity rover search for signs of life.

“Understanding Mars’s methane variations has been highlighted by NASA’s Curiosity team as the next key step towards figuring out where it comes from,” said John Ortiz, a graduate student at Los Alamos National Laboratory who led the research team. “There are several challenges associated with meeting that goal, and a big one is knowing what time of a given sol (Martian day) is best for Curiosity to perform an atmospheric sampling experiment.”

The paper was published Jan. 22 in the Journal of Geophysical Research: Planets.

Planets may fare better in open areas, like the suburbs, instead of densely populated “urban” areas, said Jessie Christiansen, an exoplanet scientist at Caltech.

Some neighborhoods in the Milky Way may be better suited for making habitable planets than others.

In 1,827, botanist Robert Brown studied pollen particles’ motion as they were suspended in water. These little grains seemed to jitter around randomly. Brown performed as variety of tests on them and realized that all small particles, not just pollen, exhibited the same motion when suspended in water. Something other than the presence of life was causing these little particles to move around. Mathematicians took note and quickly developed a theory describing this process and named it Brownian Motion in his honor.

This theory has expanded well beyond its original context and become a beautiful subfield of mathematics called Stochastic Processes. Nowhere was this influence illustrated better than in 1905 when Albert Einstein used the theory of Brownian Motion to verify the existence of atoms. The makeup of our universe’s tiniest particles was highly debated at the time, and Einstein’s work helped solidify atomic theory.

Wow, that’s quite the leap! In order to understand how we got from pollen grains to confirming atomic theory, we’re going to have to learn some background about Brownian Motion. In this article, I’ll spend some time talking about the basics. This includes some cool videos that demonstrate the patterns of Brownian Motion and the statistics going on behind the scenes. We’ll then dive into Einstein’s version which came as one of his extremely influential series of papers in 1905. There’s a lot of ground to cover, so let’s get started!

New findings from the James Webb Space Telescope reveal a surprising abundance of oxygen in the early Universe. Researchers discovered that oxygen levels in galaxies surged within 500–700 million years following the Universe’s birth, reaching levels comparable to those in contemporary galaxies. This suggests that the essential elements for life were present much earlier than previously believed.

In the early Universe, shortly after the Big Bang, only light elements such as hydrogen, helium, and lithium existed. Heavier elements like oxygen were subsequently formed through nuclear fusion reactions within stars and dispersed into galaxies, primarily through events like supernova explosions. This ongoing process of element synthesis, unfolding over the vast expanse of cosmic history, created the diverse elements that constitute the world and living organisms around us.

In a recent study, a team of researchers at Max Planck Institute for Physics proposed that advanced extraterrestrial civilizations may be using black holes as quantum computers. No matter how advanced a civilization may be, we are all bound by the laws of quantum physics and gravity. So, if aliens are indeed out there, they could be using the geometry of spacetime around a black hole which behaves like a quantum computer. And, as if that weren’t enough, quantum computing is also immune to decryption, making it the perfect tool for secure communication. Roger Penrose, famously proposed that it is possible to extract limitless energy from a black hole by tapping into its Ergosphere. This is a region just outside the event horizon, where matter falling into the black hole forms a disk that spins at nearly the speed of light and emits massive amounts of radiation. Several researchers now suggest that this may be the ultimate power source for advanced civilizations. Subscribe to Science Time: https://www.youtube.com/sciencetime24 #science #shorts #space

If there is a high probability of alien life, why has none tried to make contact?