Planetary science

An undersea quake measuring 4.4 on the Richter scale occurred in the Ionian Sea shortly before 5 a.m. on Monday, the latest in a series of temblors to shake the area.

According to the Geodynamic Institute of the Athens Observatory, the quake occurred at 4.44 a.m. some 70 kilometers southwest of Zakynthos.

Humanity is building powerful rockets like the SpaceX BFR and NASA Space Launch System that can take a payload far away from Earth. However, making the return trip means you have to lug a lot more fuel with you. Efforts to send humans to Mars in the coming decades would be helped if we could make fuel on the red planet.

A moderate earthquake measuring 4.3 on the Richter scale jolted the Ionian island of Lefkada on Saturday morning, in an area that has seen a spike in seismic activity over recent days.

The Athens-based Geodynamic Institute said that the tremor occurred at 10.05 a.m. and its epicenter was 2 kilometers northwest of Lefkada.

Two years after launching from Florida, a NASA spacecraft is closing in on an ancient asteroid, Bennu, for a sample of space dust that could reveal clues to the start of life in the solar system.

The spacecraft, OSIRIS-REx, has even snapped its first, blurry pic of the cosmic body, which is about the size of a small mountain, about 500 yards (meters) in diameter.

Sofia. It will be sunny again today in Bulgaria. A light east-northeast wind will blow, increasing to moderate in the Danube plain and the eastern areas. Maximum temperatures between 28°C and 33°C, in Sofia around 28°C.

Sofia. It will be sunny again today in Bulgaria. A light east-northeast wind will blow, increasing to moderate in the Danube plain and the eastern areas. Maximum temperatures between 29°C and 34°C, in Sofia around 29°C.

Sofia. It will be sunny again today, hot in the afternoon. A light east-northeast wind will blow, increasing to moderate in the Danube plain and the eastern areas. Maximum temperatures mostly between 29°C and 34°C, in Sofia around 29°C. Atmospheric pressure slightly higher than the average for August.

National Geographic - Get ready for a celestial double feature unlike anything seen in decades: Mars is about to make its closest approach to Earth in 15 years—just as the full moon blushes red in the longest "blood moon" eclipse of the century.

SCIENTISTS have made a huge breakthrough in the search for life on Mars after they discovered what appears to be an existing lake of water.

The lake was discovered on the south polar ice cap of Mars and is covered in a sheet of ice, the thickness of which is yet to be determined.

Our Solar System is a pretty calm place these days, all things considered, but that wasn't always the case. In the period when the planets were still forming, collisions between various large bodies were common, and they ultimately helped shape the system that we see today.