New Delhi, Feb. 1 -- NASA astronaut Sunita Williams is still counting her days in space. Due to a faulty spacecraft, her week-long excursion turned into a months-long trip. After back-to-back delays, her return to Earth is expected by March end or early April.

But what's causing the delay in bringing Williams back to Earth? Is she happy and healthy in space? What records does Sunita Williams hold in space? How long did Sunita Williams spend in space? How long will Sunita Williams' mission last? Here's your guide to understanding Sunita William's recent space mission.

Sunita Williams had launched aboard Boeing's Starliner spacecraft her colleague and NASA astronaut Butch Wilmore on June 5. They reached the International Space Station (IS...