Recent content by Tanya Li

With the James Webb telescope actively probing around the atmospheres of distant exoplanets, scientists are no longer guessing if habitable worlds are existing. For instance, the ongoing observations and debates regarding planets like K2-18b, where data hints at carbon, breaking molecules and...

I was recently reading about Earth analogues like Kepler-452b and considering the real probability of life on these worlds. Given that these exoplanets reside within the habitable zone where liquid water can exist, it seems highly plausible that microbial lifeforms could thrive there completely...

Given that Dark Matter and Dark Energy are estimated to account for roughly 95% of the universe's total mass-energy content, the fundamental nature of these phenomena remains a critical question in modern cosmology. Currently, the standard Lambda-CDM model treats them as distinct, physical...

This is an excellent point regarding the role of tidal forces and the distribution of sulfur from Io. The dynamic where Jupiter's gravitational pull acts as a tidal engine—actively churning the interiors of these moons to generate geothermal heat—is critical, especially where solar radiation is...

Thanks for all the amazing responses and the breakdown of the evolutionary timeline! It makes a lot of sense that single-celled life would be significantly more common than intelligent civilizations. Speaking of microbial life close by, I was recently reading about how scientists have found...

Thanks for your input. I think that's a really logical argument. Even though finding microbes isn't as dramatic as receiving an intelligent signal from space, discovering even a single alien bacteria would still completely change our understanding of biology forever.

Hi everyone, I wanted to start a discussion about one of the most fascinating questions in science: are we alone out there? Given that there are billions of Earth-like exoplanets in our galaxy alone, the odds seem high that life could exist elsewhere. However, we haven't found any definitive...

Hi everyone, I'm a student who is really interested in cosmology. I was thinking about how both the Big Bang and black holes start with a singularity, and I ended up finding out about Schwarzschild Cosmology and Nikodem Popławski’s model (where our universe expands like a white hole inside a...