In March 2004, a team of astronomers announced the discovery of a planet-like transneptunian object orbiting the Sun at an extreme distance, in one of the coldest known regions of our solar …

If you know how big you want the largest size (LS) in the model to be, then the scale is the ratio of the true largest size (TLS, e.g., the distance from the Sun to Pluto) to the size in the model (LS):

A number of proposed future missions will approach the Sun to within about 0.2 AU. These include Solar Probe, Solar Sentinels, Interstellar Probe, and PASO missions.

With your back to the Sun, look at your hands’ shadow on the ground. The little spaces between your fingers will project a grid of small images on the ground, showing the Sun as a crescent …

With the Sun behind you, sunlight will stream through a pinhole punched into aluminum foil taped over a hole in one side of the box. During the partial phases of a solar eclipse, this will project …

Juno can dial down or up on power depending on its distance from the sun so it doesn’t overload when close to the sun or become underpowered far from the sun.

A total solar eclipse is the only type of solar eclipse where viewers can watch without their eclipse glasses – and they can only remove them when the Moon is completely blocking the Sun.

The Sun formed from a swirling disk of gas and dust, billions of years ago. The planets and their orbits are remnants of that disk, formed from the leftover material that went into making the Sun.

With the sun’s powerful and potentially damaging rays eclipsed by Saturn itself, Cassini’s onboard cameras were able to take advan-tage of this unique viewing geometry.

If the temperature of the nebula was below 200 K, hydrogen was probably in the form of molecules, rather than as charged particles protons and electrons as it is found now in the …