esail

esail50 Electric solar Sail powered nanocraft proposed for exploring 300 asteroids at total cost of $75 million

A mission concept, known as the Asteroid Touring Nanosat Fleet, would require 50 esail powered probes to return for a flyby of Earth after asteroid flybys, as the nano-spacecraft would only be able to carry a small antenna with a …

esailIndia’ economy is not ready to quintuple within 15 years

In April 2016, Niti Aayog CEO Amitabh Kant gave a 2032 date to India becoming a $10-trillion economy, a year after Prime Minister Narendra Modi said India should dream of a $20 trillion economy but did not fix a target. …

esailLong term dimming of KIC8462852 within the large statistical uncertainty error level

Last fall Yale astronomer Tabetha (Tabby) Boyajian and colleagues posted a paper on an astronomy preprint server reporting a star (KIC 8462852) 1,480 light-years away in the constellation Cygnus had found fluctuations in the light coming from the otherwise ordinary …

asteroidsPluto spots closer up and Charon’s chasms

NASA’s New Horizons spacecraft has taken its best image of four dark spots that continue to captivate. The spots appear on the side of Pluto that always faces its largest moon, Charon—the face that will be invisible to New Horizons …