Issue with input date in mars illustration section

[Chandu6702]

fixes : #238

Video/Screenshots (mandatory)

Checklist:

• [x] I have mentioned the issue number in my Pull Request.
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have gone through the contributing.md file before contributing

Additional context:

I have updated the functionality and UI of date input .