1. What was discovered on Mars?

13. Lava Coils

These swirls that look like carvings on the martian rocks are known as lava coils. These are interesting shapes that appear to be done by humans, but they’re a naturally occurring phenomenon.

It happens when two lava flows in opposite directions meet and harden in the middle.

14. The Hole

Source: NASA/JPL-Caltech/Univ. of Arizona

In 2017, NASA's MRO discovered an unexplained hole on the surface of Mars. The hole is hundreds of meters in diameter. 

The hole could be due to the collapse of the surface or some kind of impact.

15. Face on Mars

Source: NASA/JPL

NASA's Viking 1 Orbiter was one of the first successful Mars missions. It took this image while zipping past the planet in 1976. 

The rock formation in the center that looks like a face was one of the first images that started a series of such ‘spottings’ on mars. Other similar photographs include a rabbit and two feminine statues.

These were interesting times in space exploration, though the lack of life on Mars was a little disappointing.

The present decade has seen a renewed interest in Mars missions. Companies such as SpaceX are positive about the idea of colonizing Mars.

RELATED: MARS: 56 YEARS OF EXPLORATION FROM MARS I TO INSIGHT 

‘Occupy Mars’ is the slogan. People are as invested in the vision as the space agencies. Such excitement hasn’t been seen since the moon missions. 

Effective collaboration between private companies and government agencies is set to make the vision of Mars and beyond a reality.

2.What would the scientists use embryonic stem cell lines for?

ells in the body have specific purposes, but stem cells are cells that do not yet have a specific role and can become almost any cell that is required.

Stem cells are undifferentiated cells that can turn into specific cells, as the body needs them.

Scientists and doctors are interested in stem cells as they help to explain how some functions of the body work, and how they sometimes go wrong.

Stem cells also show promise for treating some diseases that currently have no cure.