Add Yahoo as a preferred source to see more of our stories on Google. NASA chief Jared Isaacman has doubled down on his stance that Pluto is without a doubt a planet. For two decades, controversy has ...

Pluto was downgraded from a planet to a dwarf planet in 2006 by the International Astronomical Union. NASA Administrator Jared Isaacman has stated his support for President Trump to take action to ...

President Donald Trump campaigned on "America first," but some of his supporters and appointees apparently want Pluto to once again be ... ninth. The ninth planet in our solar system, that is. Ever ...

NASA chief Jared Isaacman has doubled down on his stance that Pluto is without a doubt a planet. For two decades, controversy has surrounded the distant icy world after it was infamously stripped of ...