Charles Poladian

"Game of Thrones" Season 4 has only three episodes left, but will fans get to watch a new episode on Sunday?

The United Launch Alliance had a successful launch of the classified NROL-33 mission on Thursday.

Actress Lena Headey posted a cryptic photo on Instagram that has "Game of Thrones" fans buzzing about a new character.

Today is the first days Amazon Prime members can stream HBO shows.

This weekend, a new meteor shower, the Camelopardalids, which peak on Saturday morning, brightens the sky.

"Game of Thrones" Season 4 is breaking rating records for the series on a weekly basis while "GoT" torrents continue to attract hundreds of thousands of users.

NASA's new Mars lander has been approved for construction, and the mission is scheduled to launch in 2016.

In "Game of Thrones" Season 4, the Mountain, Ser Gregor Clegane, will be played by Icelandic strongman Hafþór Júlíus Björnsson.

Researchers believe Saturn's auroras are caused by the collapse of the planet's "magnetic tail."

HBO has released three new "Game of Thrones" Season 4, episode 7, "Mockingbird" clips.

"Game of Thrones" Season 4, episode 7, "Mockingbird," featured another death and new developments for Tyrion's trial by combat.

NASA reports progress on several research fronts, including projects related to antibiotics and immune-system treatment.

Investigation into the worst Turkish mining disaster ever brings arrest of company executives and personnel.

Hidden Easter eggs from "Game of Thrones."

United Launch Alliance successfully launched a GPS satellite for the U.S. Air Force on Friday.

NASA's rover will resume its journey to Mount Sharp in the next few days.

HBO has released a new "Game of Thrones" Season 4 feature discussing all the new characters and locations on the show.

New observations from the Hubble Space Telescope have captured Jupiter's Great Red Spot at its smallest size ever.

Researchers may have discovered the steps necessary for magnetars formation.

The "Game of Thrones" Season 4 finale synopsis has leaked online.

The moon occults Saturn on Wednesday but observers can observe Saturn in the night sky on Tuesday.

A trio of International Space Station Expedition 39 crew members will return to Earth after 188 days in space. NASA's live stream coverage begins at 3 p.m. EDT.

HBO has released a new "Game of Thrones" Season 4 preview for "Mockingbird."

HBO has released five clips exploring "Game of Thrones" Season 4, episode 6, "The Laws of Gods and Men."

"Game of Thrones" Season 4, episode 6, "The Laws of Gods and Men," puts Tyrion on trial.

A new video recap for the latest "Game of Thrones" Season 4 episode, "Oathkeeper," highlights upcoming changes in Westeros.

Based on new observations, researchers have discovered a day lasts just eight hours on the exoplanet Beta Pictoris b.

Russia’s Deputy Prime Minister Dmitry Rogozin said NASA should use a trampoline to send astronauts to the International Space Station.

SpaceX released a video of the successful soft landing of the Falcon 9 rocket into the Atlantic Ocean on Tuesday.