This week's top stories include the first picture of a black hole, the measles outbreak in New York and more.
A groundbreaking image of a black hole was published Wednesday.
This is the first picture of the mysterious space phenomenon, and the first visual evidence that they exist.
A black hole is a region of space where the gravitational pull becomes so dense that nothing can escape it.
More than 200 researchers worked for over a decade to make the photograph happen.
Congress is struggling to find solutions to the border crisis after Kirstjen Nielsen's resignation.
President Trump has been at the center of debate for his comments about the border crisis, saying that the country is "full" and can't take any more immigrants.
Democrats are asking for a release of Trump's tax returns, although it doesn't appear that anyone knows why or what it would reveal.
New York City declared a public health emergency Tuesday due to the recent measles outbreak in the area.
Also in the news this week, the candidate pool for the 2020 Democratic nomination continues to grow and WikiLeaks founder Julian Assange was arrested in London after claiming asylum in the Ecuadorian embassy for seven years.