Proto-mammals laid eggs, paleontologists finally confirm

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Every mammal gives birth to live young, except for a handful of egg-laying monotremes like the platypus. But did the earliest ancestors of mammals also reproduce through eggs? It’s a question that’s stumped evolutionary biologists for decades, but researchers…

Read More
Esophagus engineering tackles function | Nature Biotechnology

Esophagus engineering tackles function | Nature Biotechnology

Garritano, S. et al. J. Pediatr. Surg. 52, 1398–1408 (2017). Article  PubMed  Google Scholar  Durkin, M. et al. Nat. Biotechnol. https://doi.org/10.1038/s41587-026-03043-1 (2026). Article  PubMed  Google Scholar  Dua, K. S., Hogan, W. J., Aadam, A. A. & Gasparri, M. Lancet 388, 55–61 (2016). Article  CAS  PubMed  Google Scholar  Catry, J. et al. Cell Transplant. 26, 1831–1839…

Read More

Entire lower-class families were sacrificed to honor local royalty 1,500 years ago in Korea, DNA analysis reveals

About 1,500 years ago, entire families were sacrificed to honor local royalty in what is now South Korea, a new genetic study finds. The analysis also reveals a dense kinship system focused on women and their descendants. In a study published Wednesday (April 8) in the journal Science Advances, an international team of researchers investigated…

Read More
Indoor Testing Facilities available at the NASA Unmanned Autonomy Research Complex (NUARC)

Indoor Testing Facilities available at the NASA Unmanned Autonomy Research Complex (NUARC)

A large WindShaper fan array is available for dynamic low-speed and hovering flight research.  The WindShaper is ideal for generating arbitrary wind gradients and wind gusts via a simple Python API.  A companion WindProbe is also available for quick surveys of flows.  The WindProbe utilizes the lab’s OptiTrack motion capture system to extract the position…

Read More