- Astronomers took direct pictures of novae after eruption.
- Novae are stars that explode and throw out material.
- Scientists used several telescopes together for sharp images.
- The pictures show different streams of gas and material.
- Some explosions send several flows that collide and shock.
- In other novae the system keeps its outer layers many days.
- Later the system releases material and makes new shocks.
- Gamma rays came from shocks during the outflows.
- These images help scientists learn how stars explode.
Difficult words
- astronomer — A person who studies stars and spaceAstronomers
- nova — A star that suddenly becomes much brighternovae
- telescope — A tool to see distant objects in spacetelescopes
- material — Substance or matter that comes from something
- stream — A flow of gas or liquidstreams
- collide — To hit something with strong force
- gamma ray — A very strong type of light from spaceGamma rays
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you seen pictures of space?
- Would you like to look at stars with a telescope?
Related articles
New models rethink the insides of Uranus and Neptune
A University of Zurich team created new interior models for Uranus and Neptune. The work shows the planets could be rock-rich or water-rich, helps explain their odd magnetic fields, and says we need dedicated missions to learn more.
Connie Nshemereirwe: linking science, policy and education in Africa
Connie Nshemereirwe is an educational measurement specialist and former engineer who promotes Africa-led research, better science communication and stronger ties among scientists in the global South. She also directs the Africa Science Leadership Program.
Leather waste turned into coffee fertiliser in Uganda
Researchers in Uganda have turned leather production waste into an organic fertiliser for coffee. Trials showed strong results, and the team plans a market-ready product by November to sell in several East and Central African countries.
Ice storm damages power systems in eastern US
A massive winter storm with ice and freezing rain is hitting the eastern United States and has cut electricity for more than a million customers. Officials, utilities and researchers are working to restore power and study grid resilience.
How relationships shape memories of childhood adversity
A study of nearly 1,000 emerging adults found that memories of adverse childhood experiences change with the quality of current relationships, especially with parents. The researchers suggest asking about these experiences more than once.