Interference in government research by U.S. President Donald Trump's administration has reached a "crisis point" with almost weekly violations of previously respected safeguards, a report by a think tank said Thursday, warning that ignoring science has led to ineffective and costly policy.

A three-man crew including an Emirati who became the first Arab to reach the International Space Station returned to Earth safely on Thursday and were in good shape, the Russian space agency Roscosmos said.

An Emirati has made history as the first Arab to reach the International Space Station, after blasting off from Kazakhstan.

India's space agency said it lost touch Saturday with its Vikram lunar lander as it made its final approach to moon's south pole to deploy a rover to search for signs of water.

The fate of the lander — whether it crashed or landed — wasn't immediately known. A successful landing would have made India just the fourth country to land a vessel on the lunar surface, and only the third nation to operate a robotic rover there.

Japanese scientists have identified a new species of dinosaur from a nearly complete skeleton that was the largest ever discovered in the country, measuring eight metres (26 feet) long.

Intrepid Brazilian and British scientists say they have located the Amazon's tallest tree in northern Brazil, untouched by a spate of wildfires that have raged in the rainforest for weeks.

An unmanned spacecraft carrying Russia's first humanoid robot to be sent into orbit successfully docked at the International Space Station on Tuesday, following a failed attempt over the weekend, Moscow's space agency said.

An unmanned spacecraft carrying Russia's first humanoid robot to be sent into orbit failed to dock automatically at the International Space Station on Saturday, in a new setback for Moscow.

Veterinarians have successfully harvested eggs from the last two surviving northern white rhinos, taking them one step closer to bringing the species back from the brink of extinction, scientists said in Kenya on Friday.

India's Chandrayaan 2 spacecraft entered lunar orbit on Tuesday, executing one of the trickiest maneuvers on its historic mission to the Moon.