A free talk exploring the ancient secrets of the sky is coming to Preston. The public lecture – titled Sun, Stones and Stars: Exploring Ancient Sky Knowledge – will take place at the University of ...

Fmr. NASA chief scientist Jim Green talks to "This Week in Space" hosts Rod Pyle and Tariq Malik about the early days of the moon. Thune Breaks With House GOP in High-Stakes Clash Scientists Studied ...

WASHINGTON — President Donald Trump said only a few "points of disagreement" remain on a possible deal to end Russia's war on Ukraine, and he's sending his top negotiator to Moscow to try to finalize ...

Ukraine and its allies welcomed progress Monday after high-stakes talks with the United States over the plan to end Russia’s war, which Washington has pressured Kyiv to endorse by Thanksgiving.

Iran is willing to resume nuclear talks with the United States if they are conducted respectfully, a senior Iranian official told CNN on Tuesday, while insisting Tehran will not move from the position ...