An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Traveling to Jupiter and Saturn is far more complex than simply pointing a spacecraft outward and firing its engines. This in-depth exploration follows humanity’s long journey to the solar system’s ...

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...

This discovery has drawn interest from both professional researchers and skywatchers because comets are ancient remnants from the early formation of ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Because the Moon appears slightly smaller in the sky at that moment, it does not block all of the Sun’s light. Instead, a ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

NASA’s Parker Solar Probe has spent the past year repeatedly diving into the sun’s outer atmosphere at speeds no human-made ...

Abstract: Distance relays (DRs) have long been considered one of the most reliable protection schemes for transmission lines (TLs), providing primary and backup protection. However, the increasing ...