Voyager 1 entered interstellar space in 2012, while Voyager 2 finally crossed the boundary marking the beginning of outer space in November 2018.
Scientists identify 50 new planets from old NASA data using artificial intelligence for the first time
These planets range from worlds as large as Neptune to those smaller than Earth and with orbits that range from as long as 200 days to as little as a single day.
The rare sighting is an opportunity to see the birth of a comet as it starts to become active, researchers say.
The study reveals that the planet is up to 58 times as massive as the Earth and completes an orbit every 8.5 days.
Auroras at Saturn's poles could be the heat source that keeps the upper layers of the planet hot, NASA's Cassini finds
Auroras are electric currents, triggered by interactions between solar winds and charged particles from Saturn's moons.
Arrokoth, imaged by NASA's New Horizon, is located 6.6 billion km from Earth and is part of the solar system’s original building blocks.
The planet has a mass higher than Earth, though much lower when compared to the ice giants — Uranus and Neptune.
TOI 1388b is orbiting two stars in a constellation called the Pictor, which is situated nearly 1,300 lightyears from the Earth.
Naiad and Thalassa are two of Neptune's innermost moons that exist pretty close to each other.
The planet was named Ultima Thule after a mythical European land that is beyond the borders of the known world.
The mission was launched in 1977 and they have gone further than the Sun and our solar system.
For a planet to be habitable, it needs to be in the habitable zone where water can exist in liquid form.
The telescopes were pointed to the exoplanet to study 12 transits & 20 eclipses around its home star.
Scientists believe this new state of water will help them understand ice giant planets like Uranus and Neptune.
The storms on Neptune are so giant in size that their longest dimension is the size of the Earth.
The mysterious dark storm was discovered by Hubble during Neptune's southern summer.
Hubble's 3 other science instruments are still working fine, with celestial observations continuing.
The surface of the new planet is likely around 300 degrees Fahrenheit — relatively cool.
At its current rate, the Saturn's rings are likely to disappear in the next 100 million years.
Super Earths could be forming around young stars in much greater numbers than scientists have thought.