The space agency’s InSight lander has detected hundreds of marsquakes since arriving on the red planet about 15 months ago.
That’s when the two stars in the binary system V Sagittae are set to merge in a spectacularly luminous fashion.
Upcoming cool science stories for 2020.
Refined instruments reduce noise at the quantum level, allowing for discoveries of more distant gravitational waves.
Data from the second probe to reach interstellar space helps scientists form a more complete picture of the boundary between the sun and the stars.