<< A University of Hawai Institute for Astronomy (IfA) astronomer has revealed critical new findings linked to a large asteroid expected to pass extremely close to Earth. Dave Tholen and collaborators have announced the detection of Yarkovsky acceleration on the near-Earth asteroid Apophis. This acceleration arises from an extremely weak force on an object due to non-uniform thermal radiation. This force is particularly important for the asteroid Apophis, as it affects the probability of an Earth impact in 2068. >>
Massive asteroid subject of new findings. Oct 26, 2020.
"2068" –Massive Asteroid Apophis on Path for Earth Impact. Oct 27, 2020.
Also
il ciottolo Apophis. Notes. May 05, 2006 (quasi-stochastic poetry).
A wicked list in the dino-killing range; waiting for new entries. FonT. Jun 29, 2017.
A few hints of our presence. Notes. Oct 13, 2006 (quasi-stochastic poetry)