By Sakshi Sah
Published May 25, 2025

Hindustan Times
Trending

Photo Credit: NASA

What makes space travel so dangerous?

Going to space sounds exciting, but it comes with real dangers.

Photo Credit: NASA

Here are 5 serious risks astronauts face on long missions.

Photo Credit: NASA

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There’s no protection from cosmic rays out there. It can damage cells and increase long-term health risks.

Hazard 1- Space radiation

Photo Credit: NASA

Living in a small space with the same people for a long time can affect mood, sleep, and mental health.

Hazard 2- Isolation and confinement

Photo Credit: NASA

The farther astronauts go, the harder it is to get help. Messages and supplies can take minutes or even months.

Hazard 3- Distance from Earth

Photo Credit: NASA

Astronauts move between different gravity levels- this changes their bones, muscles, and balance.

Hazard 4- Gravity changes

Photo Credit: NASA

Muscles shrink, bones lose strength, and even your sense of direction can change in low gravity.

Photo Credit: NASA

The air, temperature, pressure, and even bacteria levels must be carefully controlled at all times.

Hazard 5- Closed environments

Photo Credit: NASA