Too Massive, Too Early… and Still Not Massive Enough?
What if JWST’s early massive galaxies are not overestimated, but underestimated? A bottom-heavy IMF could hide tons of mass in faint stars.
Admiring the Atmospheric Egg Shell of Sub-Neptune TOI-270d
Whether you’re a six-year-old scouring the backyard on Easter morning, or an exoplanet astronomer with observing time on the James Webb Space Telescope, nothing beats the feeling of finding what you’re looking for. So, you can imagine the authors of today’s paper were pretty excited when they received their transmission spectroscopy data of the sub-Neptune known as TOI-270d.
![[Guest] The Walking Red: Why are you so quiet and overdense?](https://astrobites.org/wp-content/uploads/2026/02/cover-1-320x260.png)
[Guest] The Walking Red: Why are you so quiet and overdense?
Why do we see so many massive, dead galaxies at early cosmic times? Guest author Tatevik Mkrtchyan illuminates a slice of the cosmic graveyard!
A Possible GLIMPSE of the Universe’s First Stars
Today’s bite explores a new method to find the galaxies hosting the Universe’s first generation of stars
Do we actually know how old the Universe is?
So we have a pretty good idea of how old the Universe is right? Well according to JWST data, maybe not? Rest assured, today’s bite gets to the bottom of the debate.
Stay tuned to Radio YZ Ceti: Isn’t that a magnetic conversation between star and planet?
Astronomers have tuned their radio telescopes to YZ Ceti, and it might be crackling with a magnetic conversation of a star and its planet. Is this a breakthrough detection, or just stellar noise playing tricks on us?