For centuries, astronomers have sought to understand the formation and evolution of the solar system and the dynamics that govern it. In particular, there is the long-standing question of whether or ...

From a scientific perspective, the results reveal a continuous evolutionary sequence of lunar organic matter -- from exogenous delivery through impact-induced restructuring, to space-weathering ...

For a long time, engineers have contented themselves with setting strict degradation and unavailability numbers, often guided by an independent engineer’s recommendation, and handed those assumptions ...

Astronomers using the Subaru Telescope in Hawaii have identified a distant small body beyond Pluto, adding a fourth member to the rare group of objects known as sednoids. A sednoid is a rare type of ...

HELSINKI — China has published coordinated papers outlining dual missions to the solar system’s edge, suggesting the long-studied project is nearing formal approval. A lead paper on the design and key ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Cosmic archaeology -- Discovering the solar system -- An evolving solar system -- The question of timing -- Meteorites -- Cosmic chemistry -- A star is born -- Nursery for planets -- Worlds of rock ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...

The solar system and its place in the galaxy -- The origin of the solar system -- A history of solar system studies -- The Sun -- The solar wind -- Mercury -- Venus: atmosphere -- Venus: surface and ...