HomeNewsOpinionHow space science is helping in the fight against COVID-19

How space science is helping in the fight against COVID-19

Amidst this COVID-19 gloom, space scientists have found an excellent opportunity to use their skills to help fight the pandemic

May 31, 2020 / 10:04 IST
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Representative Image
Representative Image

Prakash Chandra

Astronauts Bob Behnken and Doug Hurley who blasted off in SpaceX’s Crew Dragon from the Kennedy Space Center, Florida, in the United States, on May 31 Sunday 12.52 AM (IST) are not just the first astronauts launched from US soil since the space shuttles were retired in 2011. They are also the first to overcome much more than the clutches of gravity, their flight symbolising the indomitable human spirit breaking free from the COVID-19 stranglehold and reigniting hopes for mankind’s finest endeavour: space exploration.

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This is the worst of times and the best of times for the global space industry (evaluated at around $375 billion last January before the pandemic forced space agencies to batten down their hatches). NASA has shelved tests on the largest and most powerful telescope ever built, the James Webb Space Telescope, scheduled for launch early next year.

The European Space Agency (ESA)’s joint Mars mission with Russia’s Roscosmos, set to lift off later this year, will have to await its next launch window in 2023. Ditto for China’s first Mars shot, the ESA’s Jupiter Icy Moon Explorer mission and wannabe spacefarer the UAE’s Mars orbiter, Hope — expected to piggyback on a Japanese launcher.

COVID-19 Vaccine
Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.
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