A 34-year-old British astrophysicist visiting the Greek island of Ikaria vanished during a morning run — and authorities believe a body found in a ravine Wednesday is hers, according to new reports.

Dr. Natalie Christopher, who was from London but was living in Cyprus, was on vacation with her 38-year-old partner, who reported her missing when she didn’t answer her phone Monday, Metro UK reported.

Authorities on the island, about 130 miles southeast of Athens, discovered a body in a ravine as they swept the region for any signs of Christopher, the outlet reported.

The body has yet to be formally identified, but local media claim it is Christopher.

Before heading out for her run, the Oxford-educated scientist told her beau, “I can’t go fast. I’ll be back slowly, don’t worry,” according to Metro.

Investigators told the outlet they found blood drops on the bedsheets in the hotel where the couple stayed, but hotel owner Theodoris Theodorakis described the spots as “typical of a nosebleed,” local media reported.

A radio signal from Christopher’s phone may have been picked up on the island of Fournous, opposite Ikaria.

Authorities have not ruled out any theories on Christopher’s disappearance, police spokesman Theodoros Chronopoulos told Metro.

“We are in the process of gathering evidence and taking witness statements from everyone we can possibly take them from,” he said.

Christopher’s disappearance comes a month after the body of Suzanne Eaton, a molecular biologist at the Max Planck Institute at Dresden University in Germany, was found inside a World War II bunker in the Cretan town of Chania.

A 27-year-old Greek farmer — the son of a priest — was arrested after confessing to raping and murdering Eaton.