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"HOUSTON, STATION ON SPACE TO GROUND."

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WELCOME TO SPACE TO GROUND, I’M LEAH CHESHIER.

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IF YOU LOVE LAUNCHES, YOU’RE IN LUCK THIS
VALENTINE’S DAY.

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THE RUSSIAN PROGRESS 77 RESUPPLY VEHICLE IS
SCHEDULED

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FOR LAUNCH FROM THE BAIKONUR COSMODROME IN
KAZAHKSTAN

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ON FEBRUARY 14 AT 11:45 PM ET.

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THE SPACECRAFT WILL ARRIVE AT THE SPACE STATION

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IN THE EARLY MORNING OF FEBRUARY 17

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FOR AN AUTOMATED DOCKING AT 1:20 AM.

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CARRYING OVER 1.1 TONS OF CARGO, PROGRESS
WILL DOCK

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TO THE PIRS DOCKING COMPARTMENT,

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WHERE IT WILL REMAIN OVER THE NEXT SEVERAL
MONTHS,

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UNTIL DEPARTING WITH THE PIRS MODULE

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FOR A FIREY REENTRY INTO THE EARTH’S ATMOSPHERE.

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THIS WILL MAKE WAY FOR

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THE FUTURE RUSSIAN MULTIPURPOSE LABORATORY
MODULE

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TO BE INSTALLED LATER THIS YEAR.

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THE INTERNATIONAL SPACE STATION IS A TEST
BED

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FOR TECHNOLOGIES THAT MAY HELP US ON FUTURE

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LONG-DURATION MISSIONS TO THE MOON AND MARS.

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ANOTHER MAJOR MARS MILESTONE OCCURED THIS
WEEK

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WITH THE LANDING OF NASA’S PERSEVERANCE
ROVER.

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PERSEVERANCE BEGAN ITS JOURNEY

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TO THE RED PLANET LAST JULY,

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AND WILL LAND THIS THURSDAY, FEBRUARY 18TH.

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ONBOARD PERSEVERANCE ARE THE FIRST SPACESUIT
MATERIALS

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EVER SENT TO MARS TO TEST THEIR DURABILITY

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AGAINST THE INTENSE RADIATION ON THE MARTIAN
SURFACE.

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THE MATERIALS, INCLUDING POLYCARBONATE, VECTRAN,

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ORTHO-FABRIC, TEFLON, AND COATED TEFLON,

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ARE INCLUDED ON THE CALBIRATION TARGET

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OF THE SHERLOC INSTRUMENT,

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WHICH WILL SEARCH FOR SIGNS OF PAST MICROBIAL
LIFE.

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THIS WEEK’S QUESTION COMES

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FROM MS. STILES 3RD GRADE CLASS,

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WHO WANTED TO KNOW IF THE ASTRONAUTS COULD
SEE STARS

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WHILE THEY ARE WORKING DURING A SPACE WALK?

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GREAT QUESTION!

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YES, ASTRONAUTS ARE ABLE TO SEE STARS

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WHILE THEY LIVE AND WORK ON THE STATION.

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JUST LIKE HERE ON EARTH, THE ASTRONAUTS WILL
HAVE

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THEIR BEST VIEWS OF THE NIGHT SKIES

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WHEN THEY ARE IN A “NIGHT PASS”.

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THIS IS THE POINT IN THE ORBIT WHEN

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THE EARTH IS BETWEEN THE STATION

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AND THE SUN LEAVING THE SPACE STATION IS IN
DARKNESS.