Green-hued comet C/2022 E3 (ZTF) is visible with binoculars, telescopes – and in some areas, the naked eye.
Scientists say a truck-sized asteroid is expected to pass Earth on Thursday, within the orbit of broadcast satellites.
The technological advancement has long been seen as critical to long-haul missions, including a manned trip to Mars.
Astronomers found 208 stars of which the furthest is 1.08 million light years from Earth.
Rocket carried beneath the wing of a modified Boeing 747 separated from the aircraft but failed to reach orbit.
Virgin Orbit to send satellites up from UK on a modified Boeing 747 with a rocket attached under its wing.
The comet is made of ice and dust and emits a greenish aura, and is estimated to have a diameter of about a kilometre.
Most of the 2,450kg (5,400lb) satellite will burn up in atmosphere but some pieces are expected to survive re-entry.
What a year of NASA’s James Webb Telescope tells us about the search for extraterrestrial life.
Tests are being conducted to determine whether Soyuz capsule is unfit for crewed flight after coolant leak.
![Roscosmos cosmonauts Sergey Prokopyev and Dmitry Petelin conduct a spacewalk outside the International Space Station (ISS), on November 17, 2022 [File:Roscosmos/handout via Reuters]](/wp-content/uploads/2022/12/2022-11-18T141646Z_840130815_RC2EOX9R1O10_RTRMADP_3_SPACE-EXPLORATION-SPACEWALK.jpg?resize=270%2C180&quality=80)
The US Office of the Director of National Intelligence reported 144 encounters with UFOs between 2004 and 2021.
The satellite will help track the impacts of rising sea levels, droughts and erosion brought on by climate change.
Mission will conduct a comprehensive survey that aims to shed new light on mechanics and consequences of climate change.
The Perseverance rover happened to have its microphone on when the 18-metre (390-foot) dust devil passed over it.
