The first woman in the world to not only walk in space but also touch the surface of the challenge deep (Mariana Trench)

American 68 year old Dr.  Kathy Sullivan became the first woman in the world to not only walk in space, but also touch the surface of the Challenger Deep at 11022 m below sea level in the deepest Mariana Trench.  He did this with a logistic company called Ios Expeditions.  He was accompanied by Victor El Vescovo.  Both spent about an hour and a half on Challenger Deep.  Then after about 4 hours he returned to his ship and also talked to the astronauts of the International Space Station about 254 miles up.  Dr.  Kathy achieved this feat on 07/06/2020.  The Mariana Trench is about 200 miles from Guam.

Achievement  Kathy said- 'Being an astronaut and marine scientist, it was the most important day in my life.  Seeing the once-in-a-lifetime Challenger Deep and then comparing notes with the International Space Station teammates is a truly forgettable moment.  The pictures we have taken at a depth of 20 to 36 thousand feet above sea level are truly unprecedented.  If you place Everest in Challenger Deep, its peak will be more than a mile below sea level.  It is very challenging to reach the summit of Everest and the bottom of Challenger Deep, as the air pressure varies greatly in both places.  Sea level on one side and Everest peak on the other.  The air pressure at the Everest peak is up to 70% lower than at sea level.  The pressure level at sea level is 1013 millibars, while at Everest it is only 253 millibars.

In 1984, Dr. America became the first woman to walk in space.  Kathy joined NASA in 1978.  On October 11, 1984, she became the first American woman to walk in space.  The Hubble Space Telescope was launched during this mission.  Hubble is an observatory revolving in the Earth's orbit, which has been captured in amazing cameras in the last 30 years.