Venus, Jupiter and Aldebaran in the sky line up in July

The two brightest planets in the solar system, Venus and Jupiter will shine together in the sky at night and the dawn of the first weeks of July , as reported by NASA. To observe this spectacle experts have pointed out that one need only look to the east. On Wednesday, Venus became visible for the first time, going through the exact center of a large group of stars that is located 153 light years from the Earth (the cluster of the Hyades). Thus, in the coming days, if you use binoculars, you can see by the planet dozens of stars scattered in the sky.

The day of the year when the Earth is farther from the Sun

There was the phenomenon known as aphelion , which occurs each year between March and July 5. This means it is the day of the year when the sun is farthest from Earth.

Although visually it is imperceptible, with a special telescope experts can see that the sun looks smaller. Precisely, is 3 percent less than its normal size.

According to experts, the effects of this are changes in the tides and a possible decrease in solar energy , but has no effect on the climate, or severity of the Earth.

A hidden ocean on Titan

The Cassini has shown that Titan, a satellite of Saturn, experiences significant tidal effects on its surface. In the course of its orbit, which lasts 16 days, changes shape: the closer is the gas giant tends to of a rugby ball while closer to a sphere at the farthest point from Saturn. This variation leads to a redistribution of mass and a change in the gravitational field. This is what Cassini measured, thanks to whose data has been concluded that in order to explain the tides experienced, Titan must have a liquid ocean, probably water under the surface.