I Made Amazing Images of Galaxies and Nebulas in Minutes Using This Idiot-Proof Automatic Telescope
Steven Bellavia couldn’t find the astrophotography setup he wanted, so he built his own. The engineer’s “Bellavia Mini” combined decades of expertise and a love of telescope building into an observatory that fits in the back of his car. Bellavia labored over …
Solar System chaos and the Paleocene-Eocene boundary age constrained by geology and astronomy
The periodic nature of Earth’s orbit around the Sun produces cycles of insolation reflected in climate records. Conversely, these climate records can be used to infer changes in the dynamics of the Solar System, which is inherently chaotic and not always simi…