The rocket with the Nauka module for the ISS was installed on the launch pad, 17.07.2021.
The Proton-M rocket with the Russian scientific module Nauka for the ISS was installed on the launch pad.
MOSCOW, July 17 - RIA Novosti. The Proton-M launch vehicle with the Nauka multifunctional laboratory module was removed and installed at the launch complex of the Baikonur cosmodrome , Roskosmos reported.
"After supplying the service unit, our specialists will start work according to the schedule of the first launch day," added the state corporation.
The launch itself is scheduled for July 21 at 17:58 Moscow time. This will be the first module that Russia will send to the ISS since 2010, when the Rassvet small research module docked to the station, and the first heavy domestic module since 2000, when the Zvezda service module was launched.
The Russian segment of the ISS now includes the Zarya functional cargo block, the Zvezda service module, the Pirs docking compartment, and the Poisk and Rassvet small research modules.
Docking of "Science" with the International Space Station is scheduled for July 29 at 16:26. The operation is planned in automatic mode, but it can be carried out remotely manually by Russian cosmonauts from the ISS.
Before the arrival of the laboratory unit on July 23 at 16:17 Moscow time, the Pirs module will be undocked with the help of the Progress MS-16 cargo vehicle and on the same day the Pirs module will be flooded in the Pacific Ocean. Now it occupies the docking station required for Nauka.
His example is "science".
Nauka is an almost complete copy of the first module of the ISS Zarya. It began to be built in 1995 as a ground backup for this module. In 2004, they decided to expand the Russian segment, and to save money, the "backup" was converted into a full-fledged flight module. Its launch was scheduled for 2007, but the production was not completed on time and for many years the start was postponed.
In 2013, when Nauka was practically prepared for shipment to the cosmodrome, foreign particles were found while checking the fuel system. This threatened with big problems, since after launching into orbit, the module had to reach the ISS on its own engines. In the event of a blockage, they could stall, and an uncontrollable 20-ton object would remain in near-earth orbit. However, if the unit had reached the station on its own, foreign particles could have disabled the station's propulsion system, since Nauka had to be connected to the fuel system of the Russian segment.
The module was returned to the manufacturer for revision. As part of the revision, its pipelines were replaced with new ones, the tanks were cleaned to the maximum, and an external platform was added for placing the scientific equipment outside. After modernization "Science" received a new name - MLM-U, where "U" is an improved one. In 2020, the segment was sent to Baikonur, where it passed all pre-launch tests.