Monday marks the deadline for Afghans sheltering in Pakistan to leave the country, with the prospect of a dangerous future in Taliban-led Afghanistan ahead. By Zia ur-Rehman Reporting from Karachi ...

Suni Williams and Butch Wilmore spoke in their first news conference since returning to Earth two weeks ago from an unexpectedly long I.S.S. stay that lasted more than nine months. transcript ...

After several candidate Ito processes were tested, the Brownian motion with drift was found to be most suitable for capturing the uncertainties. Thus, the deterministic ordinary differential equation ...

said they decided to brave the rising cross-border uncertainty because Boston felt safe and they wanted to support their skaters. Trump has roiled relations with Canada with a fusillade of tariff ...