Questions with the keyword 'dark matter'

• Why is dark matter in our universe and what does it do? by anon-150745 to Daniel, Hannah, Maggie, Ry, Scott Comments: (So far, one comment )
• when did we discover dark matter? by Jennifer Strutt to Daniel, Hannah, Maggie, Ry, Scott Comments: (No comments so far )
• how did we discover dark matter? by Jennifer Strutt to Daniel, Hannah, Maggie, Ry, Scott Comments: (No comments so far )