Vodafone Idea (Vi) has updated three International Roaming (IR) packages for postpaid users in India. The plans have been "revised with the onset of the summer holiday season, when outbound travel from India typically sees a sharp rise," the company claimed. The plans now come with more data, unlimited incoming calls, and travel security benefits.

There is a great need in healthcare, nanotechnology and other areas to improve our ability to see tiny objects that elude even the most powerful optical systems.