Joe Palka
๐ค SpeakerAppearances Over Time
Podcast Appearances
The Martian atmosphere most likely holds the explanation for why the climate changed so dramatically, and that's what the probe's instruments were designed to study.
NASA says it's still investigating why communications were lost.
For NPR News, I'm Joe Palka.
At its closest approach, Mercury is a mere 50 million miles from Earth.
Jupiter is more than seven times that far.
Yet a mission to Jupiter took five years to arrive.
The Mercury probe called BepiColombo is taking eight.
The answer is the sun's gravity.
When you head to a planet closer to the sun, the trick is slowing down enough so you go into orbit around the sun instead of plunging into it.
BepiColombo flew by the Earth once, Venus twice, and Mercury itself six times to use those planets' gravity as a way of putting on the brakes.
Once the European and Japanese Space Agency's spacecraft arrives, it will study how Mercury formed and why there is ice at the poles.
For NPR News, I'm Joe Palka.
At its closest approach, Mercury is a mere 50 million miles from Earth.
Jupiter is more than seven times that far.
Yet a mission to Jupiter took five years to arrive.
The Mercury probe called BepiColombo is taking eight.
The answer is the Sun's gravity.
When you head to a planet closer to the Sun, the trick is slowing down enough so you go into orbit around the Sun instead of plunging into it.