An independent review board for NASA’s next flagship astronomy mission concluded in its final report that the project is "not executable" without additional funding or adjustments to the spacecraft.
An unmanned aircraft in a test in August switched between two spot beams on an Intelsat high-throughout satellite.
When the "Full Cold Moon" rises on Dec. 3, it will also be the first and last "supermoon" of 2017.
There may be yet another use for SpaceX's huge Mars-colonizing rocket.
Imagine what the iconic pillars of the Eagle Nebula would look like if a powerful force caused the stellar nursery to create stars at a thousand times its current rate.
A strange green comet that zoomed past Earth earlier this year is unlike any other comet observed to date, according to new NASA research.
Mars' magnetic field stands apart in the solar system because it gets twisted by interactions with solar particles, a NASA spacecraft discovered. What's more, the Red Planet could have lost its atmosphere through the same process.
Astronauts' blood changes in space — but that may not stop them from getting to Mars.
Nobody knows the extent to which rocket launches and re-entering space debris affect Earth's atmosphere — but such ignorance could be remedied soon.
Army leaders designated Nov. 27 – Dec. 1 as "space week" with a dual focus on what the Army needs and does in space.
A planet circling a star in the constellation Cancer might have an atmosphere similar to Earth's — but with daytime temperatures hot enough to melt titanium.
Fierce stellar storms may shine light on some key signs of life in the atmospheres of exoplanets.
Meet 'Oumuamua, an interloping asteroid that became the first known object to enter the solar system from interstellar space.
Celestron is going all out this Cyber Monday with fat discounts on some of our favorite telescopes and binoculars.
SpaceX President and COO Gwynne Shotwell — a finalist for SpaceNews' Corporate Executive of the Year award — previews 2018 in an exclusive interview.
And reveal the identity of those aliens - and they aren't who you might think.
This Cyber Monday, get great deals on skywatching gear for kids. From telescopes to astronomy books, the price is right for these kid-friendly stargazing supplies.
Flash, boom, gamma-rays!
Elon Musk has once again sounded the alarm about killer robots, this time in response to a video of a humanoid robot doing a backflip.
"Mad" Mike is grounded.