Finding evidence of life in the cosmos is the "holy grail" of exoplanet science, one of the scientists said, but there is still a 0.3% chance that the observation is a statistical fluke.
The incident began while a woman was cooking on board. Several passengers, including women and children, died after jumping into the water without being able to swim.
President Trump has indicated he is frustrated with Moscow and Kyiv, even as his administration has shifted rhetoric towards accommodating Russia's account of the conflict.
Britain's highest court ruled that the U.K. equalities law defines a woman as someone born biologically female. NBC News' Hala Gorani has more on the ruling and the reaction.
Prosecutors in Berlin allege that the 40-year-old doctor killed the palliative care patients and then set fire to some of their homes to cover up the crime.
Trump stunned trading partners and global markets in early April, when he announced a raft of "reciprocal" tariffs on imports from more than 180 countries.