https://www.sciencenews.org/article/moon-rocks-china-lunar-lander-sample-lava-volcano
The first lunar rocks returned to Earth in more than 40 years show that the moon was volcanically active later than scientists thought.
on the moonlunar rocksamplesshowlava
https://www.astronomy.com/science/1-5-billion-years-ago-this-galaxy-was-already-done-making-stars/
Most massive galaxies today aren't forming many stars. So when did these galaxies stop?
billion years agothis galaxyalreadydone
https://www.universetoday.com/articles/a-third-of-the-stars-in-the-milky-way-came-from-a-single-merger-10-billion-years-ago
the starsmilky waythirdcame
https://www.inverse.com/science/earth-day-length-moon-distance
For the first time, astronomers have been able to estimate the length of the day and the distance to the Moon as it was almost two and a half billion years ago.
billion years agoancientearthwayshorter
https://www.voanews.com/a/4084491.html
Science in a Minute 102517 Changes in Earth Crust 2.5 Billion Years Ago Helped to Produce Breathable Oxygen
in a minuteearth crustsciencechanges