Supernova

A supernova was the detonation of a main sequence star, creating a massive explosion that released mass amounts of energy.

Omega used his remote stellar manipulator (the Hand of Omega) to send the star Qqaba supernova thus providing power for the Time Lords time travel experiments. (PDA: The Infinity Doctors)

The Seventh Doctor also utilised the Hand of Omega, pre-programming it and allowing the Imperial Daleks to obtain it. The Doctor had programmed the Hand of Omega to fly into Skaro's sun, sending it supernova and vaporising Skaro. (DW: Remembrance of the Daleks)

The Doomsday Weapon was also capable of causing supernovas. (DW: Colony in Space)

The Spidrons hid their home solar system behind the illusion of a supernova. (TVC: Nova)

According to Sarah Jane Smith, the Doctor took her see supernovas.

Due to the massive power of a supernova, The Doctor was able to use its power to contact Rose in a Parallel Universe that was thought to have been permanently sealed. (DW: Doomsday)