At this moment, the seat and your body fall at the same rate, until the contact and with it, your weight is restored. You can experience it, albeit for a few seconds, on the summit of a roller coaster when the seat and your body become unglued. There are multiple ways that microgravity can be experienced without – as in the case of a falling lift – dying. In fact, our weight is nothing but the equal and opposite force - known as the normal force - exerted by the Earth’s surface when our feet push against it. Deprived of any underlying surface to rest on, an object feels weightless. What ensues is akin to two objects gradually rising in an unleashed lift racing down its shaft. Similarly, the ISS and its inhabitants fall towards the Earth at the same rate. And this is exactly what the commander of the final Apollo 15 mission demonstrated on the moon. The most clichéd example is the simultaneous release of a hammer and a feather without air resistance, they must fall at the same rate. Galileo claimed that objects, regardless of their mass, would touch the ground at the same time when dropped from any height. However, their floating is an illusion the astronauts are not floating – they’re falling. NASA creates regions of microgravity, which enables its astronauts to simulate the experience of floating in space. The appropriate term to describe what astronauts experience in outer space is microgravity. (Photo Credit: NASA) What is microgravity? If gravity was nonexistent in space, the moon, some 4,00,000 km away, wouldn’t revolve around us constantly. The question is… how does NASA achieve this? The enclosed region of “zero” gravity is not located in space, but is created right here on Earth. To help the astronauts adapt, NASA, as part of their training, subjects the astronauts to such an environment every day. This is disconcerting for astronauts who are planning to spend months on the space station. Long-term exposure is known to weaken bones and muscles. The ISS circling around us is subject to 90% of Earth’s gravity, yet its travelers tend to suffer from minor inconveniences. Being the creatures of habit that we are, it takes us some time to accustom to an alien environment. Low gravity, such as the orbit in which the International Space Station (ISS) rotates, is a completely different environment than Earth’s. Her main loves are beaches, food, temples and wildlife and if she can find somewhere that ticks all those boxes, even better! Having travelled to 40 countries so far Hannah has been lucky enough to have a taster into a huge range of cultures and communities, but there are still so many to uncover.ESA astronaut Samantha Cristoforetti on the International Space Station (ISS) working with equipment for the Airway Monitoring investigation. Hannah has now combined her passion for travel with freelance work so that she can travel around the globe working as she goes. She began her career by helping people organise their gap year adventures before moving on to content and communications for a luxury safari company. Although she studied French and European Film at university, Hannah moved straight into the world of travel when it came to getting a job.
Ever since then her wanderlust has continued to be the focal point of her life. Hannah was bitten by the travel bug early in life with numerous family holidays to the south of France and even an epic round-the-world voyage to visit family friends at just the age of six.
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