A new study has found that the seven planets orbiting the nearby ultra-cool dwarf star TRAPPIST-1 are all made mostly of rock, and some could potentially hold more water than Earth. The planets’ densities, now known much more precisely than before, suggest that some of them could have up to 5 percent of their mass […]
Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances). Florence is among the largest near-Earth asteroids that are several miles in size; measurements from NASA’s Spitzer Space Telescope and NEOWISE mission indicate it’s […]
U.S. President Donald Trump, who in the past has disparaged Paris as an unsafe city because of terrorist attacks, leaves for the French capital on Wednesday for counterterrorism talks with President Emmanuel Macron and to mark the 100th anniversary of U.S. troops entering World War I. Trump a year ago described Paris as “so, so, […]
JUNEAU — The United States Mint has released candidate designs that commemorate Alaska Native Civil Rights Leader Elizabeth Peratrovich and Alaska’s Anti-Discrimination Law as part of the Native American $1 Coin Program. The Act (Public Law 110-82) authorizes the Secretary of the Treasury to mint and issue $1 coins with reverse designs bearing images celebrating […]