Akiva Bar-Nun

The late Prof. Akiva Bar-Nun. Photo: Tel Aviv University

Migdal Shavitim: Prof. Akiva Bar-Nun passed away

The source of water in the oceans? Vapors emitted from Comet Churyumov Gersimenko in a Rosetta photograph. Photo: European Space Agency, ESA

Water from a comet or an asteroid?

A simulation of the Paley lander leaving the Rosetta spacecraft to land on the mission. Figure: European Space Agency

"A 25-year-old dream is about to come true"

Comet 67P/CG as photographed on July 14, 2014 from the Rosetta spacecraft from a distance of about 12 thousand km. Photo: Credits: ESA/Rosetta/MPS for the OSIRIS team

Rosetta approaches an unusual comet

The last great bombardment on Earth. brought the water and the atmosphere

Earth's atmosphere came from outer space

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

We owe our lives to the comets

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Holmes in the Sky of Israel - an interim summary

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Back to Lord of the Rings

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The mass extinction may have been caused by a meteor

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

NASA confirms: signs of liquid water on Mars

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Our ancestors may still have been from the Adimites

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A new satellite will look for planets around other glasses

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Akiva Bar-Nun: Looking for Earth-sized planets

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Dangerous asteroid alert

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Hell around 51 Pegasi

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A meeting between planets and the earth

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Maybe we are not alone?

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The impact of Comet Shumaker Levi 9 in Jupiter